SOLUTION: y=mx+b.If m=-7,If b+40,What does y equal?

Question 415701: y=mx+b.If m=-7,If b+40,What does y equal?
Answer by Theo(13342) (Show Source): You can put this solution on YOUR website!
y = -7x + 40

the value of y depends on the value of x.

when x = 0, y = 40
when x = 1, y = -7+40 = 33
when x = 5, y = -35 + 40 = 5

a graph of the equation y = -7x + 40 is shown below:

i drew horizontal lines at y = 40, 33, and 5.

draw a vertical line from the intersection of these horizontal lines with the graph of the equation and you will see that the corresponding x values are 0, 1, and 5 respectively.

the point pairs for (x,y) are:

(0,40)
(1,33)
(5,5)

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