Determine the intercepts of the line.
y = -2x – 21
c-intercept:
y-intercept:

x-intercept = -6

Step-by-step explanation:

x - intercept is for y = 0

y - intercept is for x = 0.

We have y = -2x - 21.

Substitute:

x = 0 → y = -2(0) - 12 = 0 - 12 = -12

y = 0 → 0 = -2x - 12          add 2x to both sides

2x = -12         divide both sides by 2

x = -6

d. it is a convex pentagon because it has five sides and none of the sides would extend into the inside of the polygon.

step-by-step explanation: