Line a: (–1, 2), (1, 8)

Line b: (–3, –4), (2, 11)

ma = 8 − 2
1 − (− 1)
= 6
2
= 3

mb = 11 − (−4)
2 − (− 3)
= 15
5
= 3

Slope of the line through (1, 8) and (2, 11)

m = 11 − 8
2 − 1
= 3
1
= 3

How many points of intersection are there between line a and line b?
zero
one
two
infinitely many

its D the last one i just took the assignment

Step-by-step explanation:

hi friend

here is your answer

there are two angles that are alternate interior angle with angle 9

the angle 15 and angle 7 are alternate interior angle with angle 9.

hope it is for you so mark my answer as a brainliest

step-by-step explanation:

once you graph it hit 2nd (the blue button) and graph

that takes you to a table of coordinates

on the left is x coordinates and on the right is y coordinates and an empty box

(you may have to scroll up/down in order to get ( x, 0)