Question

Scatter plot with 10 black data points and an orange downward-sloping line.
Write an equation in slope-intercept form of the trend line.

(1 point)

y=−1/4x


y=−1/4x+9


y=1x+9


y=−5/8x+9

Answer 1

y = −5/8 x + 9

Reason: the line crosses the y‑axis at (0,9) so b = 9. It also passes through (8,4), so slope m = (4−9)/(8−0) = −5/8. Thus y = −5/8 x + 9.