Please help for 15 points.

-4

Step-by-step explanation:

When x increased by 1 units, y has decreased by 4 units. So it's -4.

Or if we use y1-y2/x1-x2

= 17 - (-3) / -2-3 = (17+3)/-5

20/-5 = -4

-4

pick two points and divide the difference of the y coordinates by the difference of the x coordinates so:

(17-13)/(-2-(-1)) = 4/(-1) = -4

step-by-step explanation:

always plug in x. in this case, x equals 4.

i'm going to first solve 4(2+3x)

1) 4(2+3(4)) use pemdas to solve.

i'm going to multiply whats in the parenthesis first, so 3 times 4=12.

2)4 (2+12) i'm then going to multiply 4 by both numbers in the parenthesis (because multiplying comes before adding)

4 times 2= 8.   4 times 12= 48

4) (8+48)= 56 (answer)

i'm then going to solve 8+12x and plug in 4 for x.

1) 8 +12(4)

multiplying comes before adding, so i'm gonna multiply 12 and 4.

12 times 4= 48.

2) 8+48=56

both equal the same!

answer:

a=9

step-by-step explanation: lmk if you need a explanation