Help Urgently, I can't find an answer for it.

The range of a function is the smallest to the biggest y-values.

For this graph, the smallest y-value is 0 and the biggest y-value is 7. Therefore, the range is 0 <= y <= 7. We use less than or equal because the function can take on those values in this case.

Hope this helps!! :)

C. The range is the set of vertical values, so look at the y axis numbers. It starts at 0 and goes up to 7. Where the endpoints are filled in, that means greater than or equal to (less than or equal to), so it is NOT the answer with < and >.

Move all to one side, make other side zero, and I like x^2 term to be positive

5-11x^2=-8x
add -5+11x^2 to both sides
0=11x^2-8x-5

4+3x=-x^2+2
add x^2-2 to both sides
x^2+3x+4+2=0
x^2+3x+6=0

x(x+2)=-5
add 5 to both sides
x(x+2)+5=0
x^2+2x+5=0

(2x-1)^2=1
expand
(2x-1)(2x-1)=1
4x^2-2x-2x+1=1
minus 1 from both sides
4x^2-4x=0