Asked by beans

A linear function is given by the equation y=4x. Using the points x and x+1, 0 show that the y-values increase by 4 between any two points separated by x2−x1=1


please help
Answered by mathhelper
let f(x) = 4x
f(x+1) = 4(x+1) = 4x + 4

so the difference between the y values for consecutive x's
y<sub>2</sub> - y<sub>1</sub>
= f(x+1) - f(x)
= 4x + 4 - 4x
= 4
what does my result show?
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