Unit 5 review

• $y=\frac{3}{2}x+1$

• $y=\frac{2}{3}x+1$

• $y=\frac{−2}{3}x+1$

• $y=\frac{−3}{2}x+1$

A line crosses the y-axis at (0,4) and has a slope of -2. Find an equation for this line.

• y = 2x + 4

• y = -2x + 4

• y = -2x - 4

• y = -4x + 2

Which graph represents the equation y = 12x + 3 ?

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The cost, in dollars, of a one-day car rental is given by C(x) = 31 + 0.18x, where x is the number of miles driven. In this function,

• $0.18 is the cost per day to rent the car and $31 is the cost per mile.

• $31 is the cost per day to rent the car and $0.18 is the cost per mile.

• $18 is the cost per day to rent the car and $0.31 is the cost per mile.

• $31 is the cost per day to rent the car and $18 is the extra cost for unlimited miles.

Identify the linear equation.

• y = x

• y = |x|

• $y=x^2$

• y = $\sqrt{x}$

Identify the linear graph.

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Write the equation of the line with the given slope and y-intercept.

slope = 5

y-intercept = 8

• y = 5x + 8

• x = 5y + 8

• y = 8x + 5

• x = 8y + 5

The distance driven in miles is proportional to the time driven in hours. Ebony drives at a constant rate and plots her progress on a coordinate plane. The point (3, 180) is plotted. At what rate is Ebony driving in miles per hour

• 40 mph

• 50 mph

• 60 mph

• 70 mph

A sign in the store window advertises 3 t-shirts for $16.50. Which coordinate pair shows the unit rate for the t-shirt sale?

• (0, 0)

• (1, 5.5)

• (2, 11)

• (3, 16.5)

Which equation is NOT an example of a linear function?

• y = 9 - 2x

• $Y=\frac{6}{X}$

  
  
  

• $y=\frac{x}{2}+9$

• $y=\frac{5}{6}x-8$