What is the answer to this equation?

f(x) = 2x-5

ff(x) means plug "f(x) =" into where the x is in the equation.

ff(x) = 2(2x-5)-5

ff(x) = 4x - 10 - 5

ff(x) = 4x - 15

An x intercept is the point on the graph where y = 0.

Let y = 0.

0 = -6x + 10

6x = 10

x = 5/3

So the point of X intercept would be (5/3, 0)

The x intercept is just where the line crosses zero. So make y in the equation zero and solve for x.

y=-6x+10 evalute at y=o

0=-6x+10

6x=10

x=10/6=5/3

Part I: f(x) = 2x -5

f(2x - 5) = 2(2x - 5) - 5

= 4x -10 - 5

= 4x - 15

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Part II: Solve this equation in terms of x instead of y...

y = -6x + 10

y - 10 = -6x

(y - 10) / -6 = x

Therefore, the x intercept of this equation is (y - 10)/ -6

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