19. (X+5)-3
20. 2a
21.3b
22. 5y-5
23. 1/2n-15
I believe the answer is c im am stuck on the same problem do you know the answer?<span />
Answer:
$y=(7/2)x+20$
Step-by-step explanation:
SInce the gradient of the first line is $-2/7$ then the gradien of the perpendicular line is $7/2$.
Therefore by the point slope formula the line that we are looking for is
$y-6=(7/2)(x+4)$
$y=(7/2)x + 20$
