Question

If the graph of y = -4x + 7 is perpendicular to the graph of y = mx + 3 , then what does m equal?

-4

4

1/4

-1/4
Given A(9, 11), B(3, -4), C(6, 9), and D(-7, 7), then the midpoint of which line is located in Quadrant II?

AB

BC

AC

BD

Answer 1

@Michele_Laino

Answer 2

if I call your slope with m, then the subsequent equation has to be checked:
m*M=-1, where M=-4,
so
m=-1/4

Answer 3

oops sorry:
m=1/4

Answer 4

lol ok wb #2?

Answer 5

applying the formula for midpoint, given two points, we have:
midpoint AB= (6,7/2)
midpoint AC=(15/2,10),
midpoint BC=(9/2,5/2)
midpoint BD=(-2,3/2)

Answer 6

so is the answer BC?

Answer 7

your answer is midpoint of BD, namely the fourth option

Answer 8

oh ok ty!

Answer 9

thank you!