Answer:
question 1 and 3
Step-by-step explanation:
Answer:
11+2x
Step-by-step explanation:
5+6=11
4x-2x=2x
Concave up is U-shaped.
There will be a inflection/critical point f'(x) =0 then a negative slope f'(x) = neg then another inflection/critical point f'(x) =0 at the bottom of the U-shape then a positive slope to last inflection/critical point. The interval for the Concave Up shape is the first and last inflection points.
I believe also 115 degrees bc they’re vertical angles
