9th grade unit 4 test review

Which equation matches the graph?

• 3x + 9y = 27

• 2x + 3y = 8

• 5x + 7y = 35

• 3x + 2y = 10

Which is the correct table to use when graphing the equation y = –4 + 3/4x?

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What equation does the line on the graph represent?

In 2015, Sarah spent $800 buying lunches. In 2017, she spent $550 buying lunches. What was

the rate of change from 2015 to 2017?

• –$250 per year

• $125 per year

• –$125 per year

• $250 per year

What is the slope of the line that passes through (–3, 2) and (10, –2)?

• -4/13

• -13/4

• 0

• undefined

What is the slope of the line that passes through points (3,−2) and (3,10)?

• 0

• 3

• 4

• undefined

A bowling alley charges a flat fee to rent shoes. There is an additional fee for each game played. The

function y = 2.5x + 3 represents the cost y of bowling x games. Interpret the parameters of the function.

• 3 represents the shoe rental charge.

  2.5 represents the price per game.

• 2.5 represents the shoe rental charge.

  3 represents the price per game.

• 0 represents the shoe rental charge.

  3 represents the price per game.

Which equation matches the graph?

• y = 1/2x + 6

• y = 2x - 6

• y = -1/2x + 6

• y = 2x - 6

Write 10x – 5y = –30 in slope-intercept form

The graph of g(x) = x – 5 is a translation of the graph of the parent function 5 units ____

• right

• left

• up

• down