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Determine whether the algebraic equation is linear. 6 x 2 y = 5

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Determine whether the function is increasing or decreasing.

f ( x ) = 7 x 2

Increasing

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Determine whether the function is increasing or decreasing.

g ( x ) = x + 2

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Given each set of information, find a linear equation that satisfies the given conditions, if possible.

Passes through ( 7 , 5 ) and ( 3 , 17 )

y = 3 x + 26

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Given each set of information, find a linear equation that satisfies the given conditions, if possible.

x -intercept at ( 6 , 0 ) and y -intercept at ( 0 , 1 0 )

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Find the slope of the line shown in the graph.

This is a graph of an increasing line with a y-intercept of -3 and x-intercept of 1 on an x, y coordinate plane.  The x and y-axis range from -6 to 6.

3

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Find the slope of the line graphed.

This is a graph of a line with a y-intercept of -2 and no x-intercepts on an x, y coordinate plane.  The x- and y-axis range from -6 to 6
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Write an equation in slope-intercept form for the line shown.

This is a graph of a line with a y-intercept of -2 and x-intercept of 1 on an x, y coordinate plane.  The x- and y-axis both range from -6 to 6.

y = 2 x 2

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Does the following table represent a linear function? If so, find the linear equation that models the data.

x –4 0 2 10
g(x) 18 –2 –12 –52
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Does the following table represent a linear function? If so, find the linear equation that models the data.

x 6 8 12 26
g(x) –8 –12 –18 –46

Not linear.

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On June 1 st , a company has $4,000,000 profit. If the company then loses 150,000 dollars per day thereafter in the month of June, what is the company’s profit n th day after June 1 st ?

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For the following exercises, determine whether the lines given by the equations below are parallel, perpendicular, or neither parallel nor perpendicular:

2 x 6 y = 12 x + 3 y = 1

parallel

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y = 1 3 x 2 3 x + y = 9

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For the following exercises, find the x - and y - intercepts of the given equation

7 x + 9 y = 63

( –9 , 0 ) ; ( 0 , –7 )

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For the following exercises, use the descriptions of the pairs of lines to find the slopes of Line 1 and Line 2. Is each pair of lines parallel, perpendicular, or neither?

Line 1: Passes through ( 5 , 11 ) and ( 10 , 1 )

Line 2: Passes through ( −1 , 3 ) and ( −5 , 11 )

Line 1: m = 2 ; Line 2: m = 2 ; Parallel

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Line 1: Passes through ( 8 , −10 ) and ( 0 , −26 )

Line 2: Passes through ( 2 , 5 ) and ( 4 , 4 )

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Write an equation for a line perpendicular to f ( x ) = 5 x 1 and passing through the point (5, 20).

y = 0.2 x + 21

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Find the equation of a line with a y - intercept of ( 0 , 2 ) and slope 1 2 .

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Sketch a graph of the linear function f ( t ) = 2 t 5.


This is a graph of f of t = 2 times t minus 5 on a x, y coordinate plane.  The x-axis ranges from -4 to 6 and the y-axis ranges from -6 to 6. The curve is an increasing linear function that goes through the points (0,-5) and (2.5,0).

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Find the point of intersection for the 2 linear functions: x = y + 6 2 x y = 13 .

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A car rental company offers two plans for renting a car.

Plan A: 25 dollars per day and 10 cents per mile

Plan B: 50 dollars per day with free unlimited mileage

How many miles would you need to drive for plan B to save you money?

More than 250

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Modeling with Linear Functions

Find the area of a triangle bounded by the y axis, the line f ( x ) = 10 2 x , and the line perpendicular to f that passes through the origin.

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A town’s population increases at a constant rate. In 2010 the population was 55,000. By 2012 the population had increased to 76,000. If this trend continues, predict the population in 2016.

118,000

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The number of people afflicted with the common cold in the winter months dropped steadily by 50 each year since 2004 until 2010. In 2004, 875 people were inflicted.

Find the linear function that models the number of people afflicted with the common cold C as a function of the year, t . When will no one be afflicted?

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For the following exercises, use the graph in [link] showing the profit, y , in thousands of dollars, of a company in a given year, x , where x represents years since 1980.

Questions & Answers

sin theta=3/4.prove that sec square theta barabar 1 + tan square theta by cosec square theta minus cos square theta
Umesh Reply
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
Thanks for this helpfull app
Axmed Reply
secA+tanA=2√5,sinA=?
richa Reply
tan2a+tan2a=√3
Rahulkumar
classes of function
Yazidu
if sinx°=sin@, then @ is - ?
NAVJIT Reply
the value of tan15°•tan20°•tan70°•tan75° -
NAVJIT
0.037 than find sin and tan?
Jon Reply
cos24/25 then find sin and tan
Deepak Reply
Practice Key Terms 5

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Source:  OpenStax, Algebra and trigonometry. OpenStax CNX. Nov 14, 2016 Download for free at https://legacy.cnx.org/content/col11758/1.6
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