Question

What function is represented by a line with slope -2 that passes through the point (0,4)

Answer 1

We can write the function in slope-intercept form (y + mx + b). Since we have the slope, we can solve for the y-intercept.

y = -2x + b

4 = -2(0) + b

4 = b

Input the data we have now.

y = -2x + 4

Since we are dealing with a function switch out the y for f(x)

f(x) = -2x + 4

Best of Luck!