Question

Help please.

Answer 1

to be differentiable it has to be continuous so \[x^2 = mx+b~at~x = 2\]
and the slopes have to be the same so \[2x = m~at~x=2\]

Answer 2

plug in 2 and then solve the system for m and b

Answer 3

Would I plug it into x^2=mx and solve for m?

Answer 4

you're eventually going to have to put it into both. if you start with 2x = m, then you can get m and substitute it into the top one and solve for b

Answer 5

So m would equal 4 and b would equal -4?

Answer 6

yes

Answer 7

And thats the answer?

Answer 8

yes

Answer 9

Okay thank you!!!

Answer 10

you're welcome