Answer:
14.5
Step-by-step explanation:






What are the expressions?? is there suppose to be options or diagrams??
It creates a 90 degree angle so that means its perpendicular.
Answer:
Step-by-step explanation:
Answer:
Step-by-step explanation:
(a,9).......we dont know " a " (or x) but we do know y...it is 9
so sub in 9 for y and solve for x
y = 2x + 1
9 = 2x + 1
9 - 1 = 2x
8 = 2x
8/2 = x
4 = x <======= ur answer is D