The derivative of (x+1)^2, for this you use the chain rule, to get 2x+2.
4(c-6)
distribute 4(c-6)
4xc and -6x4
youll get 4c-24
I think it’s 20 degrees or 70
Focus on triangles DFC and DFE:
- They are both right triangles because DF is perpendicular to EC
So, the two triangles are congruent. It follows that CF=FE, and in particular

And since x=3, the length of EF is

It is the graph shifted 6 units right