Answer:
-4x^2 - 6
Step-by-step explanation:
When you add them together it gives a sum of -2x^2 - 6. Multiplying that by 2 gives you the above answer.
Answer: YES
Plug in the numbers in your head.
y=3(10)+7
y=30+7
y=37 which is the y intercept
question 1 is C) 5/2x+1