Which of the following is an equation of the line through (2,3) and (-1,-12)a) y=1/5x+13/5b) y=-1/5x+17/5c) y=5x-7d)y=-5x+7

The correct answer is C.

Step-by-step explanation:

In order to find the line, we first need to find the slope. For that we use the slope formula.

m(slope) = (y2 - y1)/(x2 - x1)

m = (-12 - 3)/(-1 - 2)

m = -15/-3

m = 5

Now we put the slope and one of the points into point-slope form and solve for y.

y - y1 = m(x - x1)

y - 3 = 5(x - 2)

y - 3 = 5x - 10

y = 5x - 7

14.3

step-by-step explanation:

add all the numbers together.

9 + 12 + 15 + 16 + 17 + 17 = 86

now, divide 86 by how many numbers we have: 6.

86 / 6 = 14.3