Question

Line CD contains points A (4, -7) and B (4, 8). The slope of line CD is ?

zero
undefined
positive
negative

Answer 1

u know the formula of slope .

Answer 2

m=y2-y1/x2-x1

Answer 3

here x1=4
x2=4
y1=-7
y2=8

Answer 4

8+7 / 4-4

Answer 5

yes its coming undefined

Answer 6

so 15/0

Answer 7

yes

Answer 8

its undefined now

Answer 9

yes,thats the answer

Answer 10

thank you for the help

Answer 11

yw.