
Simplify this quadratic function given in vertex form into standard form by simplifying the exponents and adding like terms.




(good luck :) and mark me brainliest if you're satisfied with my answer)
8: 20
9: 90
I am so sorry if this is wrong. I am not good at this type of things
Answer:
C) They are perpendicular lines.
Step-by-step explanation:
We first need to find the slope of the graph of the lines passing through these points using:

The slope of the line that passes through (−12, 15) and (4, −5) is


The slope of the line going through (−8, −9) and (16, 21) is



The product of the two slopes is

Since

the two lines are perpendicular.
Opposites are the same difference from zero!