Adata set consists of the following data points: (2, 4), (4, 7), (5, 12) the slope of the best-fit line is 2.5. find the y-intercept of this line. a. -1.5 b. -2 c. -2.5 d. -1

D. -1

Step-by-step explanation:

We have been given a set of data points and the slope of the line of best fit as 2.5.

The equation of the line of best fit, in slope-intercept form, can be thus written as;

y = 2.5x + c

where c is the  y-intercept of this line.

We can then use any of the points given to determine c. Using the point

( 2, 4);

4 = 2.5(2) + c

4 = 5 +c

c = 4-5 = -1

the answer is b. 60. each interior angle in 120, so the exterior angle must be 60 in order to add up to 180

step-by-step explanation:

c > -10.55

step-by-step explanation: