Answer:

Step-by-step explanation:

When comparing to standard form of a parabola: 
Vertex form of a parabola is:
, which is what we are trying to convert this quadratic equation into.
To do so, we can start by finding "h" in the original vertex form of a parabola. This can be found by using:
.
Substitute in -8 for b and 2 for a.

Simplify this fraction.


The "h" value is 2. Now we can find the "k" value by substituting in 2 for x into the given quadratic equation.

Simplify.


We have the values of h and k for the original vertex form, so now we can plug these into the original vertex form. We already know a from the beginning (it is 2).

Answer:
The width of the rectangle is 4x^24x
2
4, x, squared
The length of the rectangle is 2x^3+3x+52x
3
+3x+5
Step-by-step explanation:
The slope is 1. The line first crosses the y axis at -5. So the answer is...
y = 1x + -5
the answer would be 5236
476 x 1 would be 476. then 10 x 476 would 4760, add them together and you will get 5236
:)