Answer: y = 9
Step-by-step explanation:
Since two points are given , we will use the formula for finding the equation in two points form , which is
=
= 1
= -3
= -9
= -9
Substituting into the formula , we have
=
=
=
= 0
y + 9 = 0
y = 9
Answer: x = 15
Step-by-step explanation:
1) Set q(x) = 3 in the equation.
3 = (4/5)x - 9
2) Add 9 to both sides.
12 = (4/5)x
3) Multiply by 5/4 on both sides.
15 = x
x = 15
If I remember correctly I think its B. 15 mm