Your answer should be in polynomial standard form.

E= 6c^2 - 2c - 1
F= -4c^2 + 7c + 5

What is E+F

2c^2+5c+4
just add numbers with common variables and exponents

Period is the time it takes for one “cycle” to complete. in the parent sine function, period is 2*pi since sin(0) = 0, sin(pi/2) = 1, sin(pi) = 0, sin(3pi/2) = -1, and sin(2pi) = 0. at that point, the sequence repeats itself. i’m not sure if your graph is similar to the sine function since you didn’t provide a picture, but you can find the period by looking at a graph.

The answer to this question is & 17.50