Question

For the graph below, what should the domain be so that the function is at least 200?

graph of y equals minus 2 times the square of x plus 30 times x plus 200
−5 ≤ x ≤ 20
0 ≤ x ≤ 15
x ≥ 0
All real numbers

Answer 1

http://prntscr.com/87cqe0

Answer 2

@Michele_Laino

Answer 3

hint:
from your graph, I see that:
f(0)= 200,
f(15)=200, and fo r all point x between 0 and 15, is f(x)>200

Answer 4

oopss. for all points*

Answer 5

I am sorry i am still confused.