Answer:
p = 5
Step-by-step explanation:
We have that:

So

10/2 = 5
Then

Finding p:



63 + 36...there is a common factor of 9
9(7 + 4) <== this is equivalent
63 + 36...there is a common factor of 3
3(21 + 12)...but this is not an answer choice...but it is equivalent
Answer:
4 21
Step-by-step explanation:
Its probably the answer you are looking for
You seem to have forgotten to add in the y-intercept or slope. For the information you have given, it could be any equation, so long as it passes through the point (2, -1), such as
y = -x + 1