Question

Using the points ( 6.4, 117) and (6.6, 120), what is the slope of the trend line?

a. -15
b. -12
c. 12
d. 15

Answer 1

d 15.

Explanation:

Slope = (difference in y values)/ (corresponding difference in x values)

So we have:

Slope = (120-117) / (6.6-6.4)

= 3 / 0.2

= 30/2 = 15.