<< Chapter < Page Chapter >> Page >

y varies directly as x and when x = 6 ,   y = 12.

Got questions? Get instant answers now!

y varies directly as the square of x and when x = 4 ,   y = 80 . 

y = 5 x 2

Got questions? Get instant answers now!

y varies directly as the square root of x and when x = 36 ,   y = 24.

Got questions? Get instant answers now!

y varies directly as the cube of x and when x = 36 , y = 24.

y = 10 x 3

Got questions? Get instant answers now!

y varies directly as the cube root of x and when x = 27 ,   y = 15.

Got questions? Get instant answers now!

y varies directly as the fourth power of x and when x = 1 ,   y = 6.

y = 6 x 4

Got questions? Get instant answers now!

y varies inversely as x and when x = 4 ,   y = 2.

Got questions? Get instant answers now!

y varies inversely as the square of x and when x = 3 ,   y = 2.

y = 18 x 2

Got questions? Get instant answers now!

y varies inversely as the cube of x and when x = 2 ,   y = 5.

Got questions? Get instant answers now!

y varies inversely as the fourth power of x and when x = 3 ,   y = 1.

y = 81 x 4

Got questions? Get instant answers now!

y varies inversely as the square root of x and when x = 25 ,   y = 3.

Got questions? Get instant answers now!

y varies inversely as the cube root of x and when x = 64 ,   y = 5.

y = 20 x 3

Got questions? Get instant answers now!

y varies jointly with x and z and when x = 2 and z = 3 ,   y = 36.

Got questions? Get instant answers now!

y varies jointly as x ,   z , and w and when x = 1 ,   z = 2 ,   w = 5 , then y = 100.

y = 10 x z w

Got questions? Get instant answers now!

y varies jointly as the square of x and the square of z and when x = 3 and z = 4 , then y = 72.

Got questions? Get instant answers now!

y varies jointly as x and the square root of z and when x = 2 and z = 25 , then y = 100.

y = 10 x z

Got questions? Get instant answers now!

y varies jointly as the square of x the cube of z and the square root of W . When x = 1 , z = 2 , and w = 36 , then y = 48.

Got questions? Get instant answers now!

y varies jointly as x   and   z and inversely as w . When x = 3 ,   z = 5 , and w = 6 , then y = 10.

y = 4 x z w

Got questions? Get instant answers now!

y varies jointly as the square of x and the square root of z and inversely as the cube of w .  When x = 3 , z = 4 , and w = 3 , then y = 6.

Got questions? Get instant answers now!

y varies jointly as x and z and inversely as the square root of w and the square of t  . When x = 3 , z = 1 , w = 25 , and t = 2 , then y = 6.

y = 40 x z w t 2

Got questions? Get instant answers now!

Numeric

For the following exercises, use the given information to find the unknown value.

y varies directly as x . When x = 3 , then y = 12. Find y wneh x = 20.

Got questions? Get instant answers now!

y varies directly as the square of x . When x = 2 , then y = 16. Find y when x = 8.

y = 256

Got questions? Get instant answers now!

y varies directly as the cube of x . When x = 3 , then y = 5.   Find y when x = 4.

Got questions? Get instant answers now!

y varies directly as the square root of x . When x = 16 , then y = 4. Find y when x = 36.

y = 6

Got questions? Get instant answers now!

y varies directly as the cube root of x . When x = 125 , then y = 15. Find y when x = 1,000.

Got questions? Get instant answers now!

y varies inversely with x . When x = 3 , then y = 2. Find y when x = 1.

y = 6

Got questions? Get instant answers now!

y varies inversely with the square of x . When x = 4 , then y = 3. Find y when x = 2.

Got questions? Get instant answers now!

y varies inversely with the cube of x . When x = 3 , then y = 1. Find y when x = 1.

y = 27

Got questions? Get instant answers now!

y varies inversely with the square root of x . When x = 64 , then y = 12. Find y when x = 36.

Got questions? Get instant answers now!

y varies inversely with the cube root of x . When x = 27 , then y = 5. Find y when x = 125.

y = 3

Got questions? Get instant answers now!

y varies jointly as x   and   z . When x = 4 and z = 2 , then y = 16. Find y when x = 3 and z = 3.

Got questions? Get instant answers now!

y varies jointly as x ,   z ,   and   w . When x = 2 , z = 1 , and w = 12 , then y = 72. Find y when x = 1 , z = 2 , and w = 3.

y = 18

Got questions? Get instant answers now!

y varies jointly as x and the square of z. When x = 2 and z = 4 , then y = 144. Find y when x = 4 and z = 5.

Got questions? Get instant answers now!

y varies jointly as the square of x and the square root of z . When x = 2 and z = 9 , then y = 24. Find y when x = 3 and z = 25.

y = 90

Got questions? Get instant answers now!

y varies jointly as x and z and inversely as w . When x = 5 , z = 2 ,   and   w = 20 , then y = 4. Find y when x = 3 and z = 8 ,   and   w = 48.

Got questions? Get instant answers now!

y varies jointly as the square of x and the cube of z and inversely as the square root of w .  When x = 2 , z = 2 , and w = 64 , then y = 12. Find y when x = 1 , z = 3 , and   w = 4.

y = 81 2

Got questions? Get instant answers now!

Questions & Answers

f(x)=x square-root 2 +2x+1 how to solve this value
Marjun Reply
what is algebra
Ige Reply
The product of two is 32. Find a function that represents the sum of their squares.
Paul
if theta =30degree so COS2 theta = 1- 10 square theta upon 1 + tan squared theta
Martin Reply
how to compute this 1. g(1-x) 2. f(x-2) 3. g (-x-/5) 4. f (x)- g (x)
Yanah Reply
hi
John
hi
Grace
what sup friend
John
not much For functions, there are two conditions for a function to be the inverse function:   1--- g(f(x)) = x for all x in the domain of f     2---f(g(x)) = x for all x in the domain of g Notice in both cases you will get back to the  element that you started with, namely, x.
Grace
sin theta=3/4.prove that sec square theta barabar 1 + tan square theta by cosec square theta minus cos square theta
Umesh Reply
acha se dhek ke bata sin theta ke value
Ajay
sin theta ke ja gha sin square theta hoga
Ajay
I want to know trigonometry but I can't understand it anyone who can help
Siyabonga Reply
Yh
Idowu
which part of trig?
Nyemba
functions
Siyabonga
trigonometry
Ganapathi
differentiation doubhts
Ganapathi
hi
Ganapathi
hello
Brittany
Prove that 4sin50-3tan 50=1
Sudip Reply
f(x)= 1 x    f(x)=1x  is shifted down 4 units and to the right 3 units.
Sebit Reply
f (x) = −3x + 5 and g (x) = x − 5 /−3
Sebit
what are real numbers
Marty Reply
I want to know partial fraction Decomposition.
Adama Reply
classes of function in mathematics
Yazidu Reply
divide y2_8y2+5y2/y2
Sumanth Reply
wish i knew calculus to understand what's going on 🙂
Dashawn Reply
@dashawn ... in simple terms, a derivative is the tangent line of the function. which gives the rate of change at that instant. to calculate. given f(x)==ax^n. then f'(x)=n*ax^n-1 . hope that help.
Christopher
thanks bro
Dashawn
maybe when i start calculus in a few months i won't be that lost 😎
Dashawn
what's the derivative of 4x^6
Axmed Reply
24x^5
James
10x
Axmed
24X^5
Taieb
comment écrire les symboles de math par un clavier normal
SLIMANE
Thanks for this helpfull app
Axmed Reply
Practice Key Terms 7

Get the best Algebra and trigonometry course in your pocket!





Source:  OpenStax, Algebra and trigonometry. OpenStax CNX. Nov 14, 2016 Download for free at https://legacy.cnx.org/content/col11758/1.6
Google Play and the Google Play logo are trademarks of Google Inc.

Notification Switch

Would you like to follow the 'Algebra and trigonometry' conversation and receive update notifications?

Ask