Question

Write an equation of the line in slope-intercept form given the graph below.

(2.1)
(0, 2)

Answer 1

y = -0.5x + 2

Explanation:

m=(y2−y1)/(x2−x1)

m=(1-2)/(2-0)

m (slope) = -1/2 or -0.5

y = mx + b (we need b now, y-int)

1 = -0.5(2) + b

b - 1 = 1

b = 2

Now we have the slope (m) and the y-intercept (b), we can rewrite it as such:

y = -0.5x + 2

Hope this helped!

*Remember the equation of a line in slope-intercept form is y=mx+b. In this problem, we found the slope and y-intercept.