The function h(x) = –2x2 + 8x written in vertex form is h(x) = –2(x – 2)2 + 8. the function h(x) is shown on the graph along with the parent function, f(x) = x2. which statement is true concerning the vertex and axis of symmetry of h(x)? the vertex is at (0, 0) and the axis of symmetry is x = 2. the vertex is at (0, 0) and the axis of symmetry is y= 2. the vertex is at (2, 8) and the axis of symmetry is x = 2. the vertex is at (2, 2) and the axis of symmetry is y = 2.

x= -3 and

step-by-step explanation:

to find the roots of a cubic, use division or factoring to find the factors then set equal to 0. as this is a difference of cubes, it factors into

where a is the cube root of .

here   this is 27 and the cube root of 27 is 3. so we write using the form:

.

set each factor to 0 and solve for x.

x-3=0

x=3

the quadratic expression does not factor and must be solved using the quadratic formula.

where a = 1, b=3, and c=9

this cubic has two complex roots.

it will cost dollar $540

the living room is 3 which means if we divide 325/3 then we get $108

therefore if 1part of the living room cost $108 and 3 costed $325

then total 5part of the room will cost 5*108 which gives $540