Question

A function f (x)is graphed on the coordinate plane.

What is the function rule in slope-intercept form?
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f(x) =

Answer 1

• f(x) = 2x + 1

Explanation:

We can see y-intercept is 1 as per point (0, 1)

Using another point to find the slope (-3, -5)

• m = (1 - (-5))/(0 - (-3)) = 6/3 = 2

So the function is:

• f(x) = 2x + 1