8th Grade Unit 3 Post Assessment

The equation compares the number of points that Steve and Pete each scored in a basketball game.

3s + 5 = p

If s represents the number of points Steve made and p represents the number of points Pete made, which statement is true?

• Pete scored 5 less than 3 times what Steve scored

• Steve scored 5 more than 3 times what Pete scored

• Pete scored 5 more than 3 times what Steve scored

• Steve scored 3 more than 5 times what Pete scored

What does the slope represent?

• speed of the car during trip

• number of miles to destination

• number of miles per gallon

• cost of gasoline for the trip

Which of the following best describes the slope of the graph?

• the distance the balloon is from the ground in feet

• the rate at which the balloon rises in feet per minute

• the number of minutes the balloon has been in the air

• the number of minutes the balloon takes to reach its maximum height

The equation T = 0.63s + 78 can be used to determine T, the temperature in degrees, inside an oven s seconds after the over is turned on. Which statement relative to this equation is true?

• Each second the temperature increased 78 degrees

• The initial temperature inside the oven was degrees

• The temperature inside the oven in one minute was 141 degrees

• The temperature inside the oven increased by 78 degrees every 63 seconds

What will Jasmine's total cost be dollars if she orders 5 posters?

Which table corresponds to the function y = -3x + 11?

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Which of the following equations represents the relationship between x and y shown in the table below?

• y = 2x + 1

• y = x + 3

• y = 3x - 1

• y = 11 - 3x

Which equation corresponds to the values in the table below?

• y = -3x

• y = -3x - 2

• y = -2x - 3

• y = x - 3

Which equation represents the submarine's decent according to the table?

• y = 100x - 1400

• y = 600x

• y = -100x - 1000

• y = -600x

Each row contains an equation or set of ordered pairs. Calculate the slope for each row and select the resulting value.

Groups:

(a) Slope is (-4/3)

,

(b) Slope is (-3/4)

• y = 9 - 4/3x

• (12, 12) (8, 15)

• (-9, 4) (-12, 8)

• y = -3/4x - 12