-27/14
The formula is y2-y1 over x2-x1. If you plug in you points that would be 18-(-9) over -10-4. Subtract and that’ll be your answer. Hope this helps!
Answer:
17) A
18) B
Step-by-step explanation:
Step-by-step explanation:
the answer is a,hope it helps
52/65=.8
52 is 80% of 65
there is a 20% discount

Taking 4 out from first two terms, we will get

Now we divide the coefficient of x by 2 and add and subtract the square of the result, we will get

Distributing 4

Cancelling 9

And that's the required standard form.