Y=mx+b Review

is your equation y=mx+b what does m stand for

• x coordinate

• y coordinate

• y-intercept

• slope

is your equation y=mx+b what does b stand for

• x coordinate

• y coordinate

• y-intercept

• slope

What is the y-intercept of the graph as a function

• -8/2

• -7/8

• 5

• 7/8

What is the slope of the graph as a function

• -8/2

• -7/8

• 5

• 7/8

What is the equation of the graph as a function

• y=-3/8x+5

• y=7/8x+5

• y=5x-3/8

• y=-7/8x+5

Which table of ordered pairs, when plotted, will show a linear non-proportional relationship between x and y ?

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Rachel participated in a 12-kilometer walk-a-thon to raise money for her favorite charity. She walked at a constant rate during the entire walk-a-thon. The table shows Rachel’s times at the beginning, middle, and end of the walk-a-thon.

What is the constant rate of change

• 1.25

• 6

• 4.8

• 0

A company is drilling a water well. The graph models the linear relationship between the depth of the well and the time spent drilling.

Which function best represents the relationship between y and x?

• y=5x+30

• y= 1/6x

• y=6x

• y=30x+5

A water tank currently contains 275 gallons of water. The amount of water in the tank will decrease at a constant rate of 15 gallons per week.

What function can be used to find t, the total numbers of gallons of water in the tank after w weeks?

• t=15w-275

• t=-15w+275

• t=275w-15

• t=-275w+15

A coach is ordering a shirt for teams

the coach pays a one-time fee of $24.

the coach also pays $8 for each shirt ordered.

Which function can be used to find c, the total amount the coach pays in dollars when k shirts are ordered?

• c=24k+8

• c=32k+8

• c=8k+24

• c=8k+32