Question

I need help with number 13

Answer 1

The slope-intercept form:

$y=mx+b$

m - slope

b - y-intercept → (0, b)

We have the point (0, 5). Therefore b = 5.

We have: y = mx + 5

Other point (3, 2). Substitute the coordinates of the point to the equation of the line:

$2=3m+5$     subtract 5 from both sides

$-3=3m$      divide both sides by 3

$-1=m\to m=-1$

Answer: f(x) = -1x + 5 = -x + 5