Answer:
Please let me know if your quadratic is 
.
And if so your vertex is (-2,2) and your y-intercept is (0,-6)
Step-by-step explanation:
It says vertex so I'm thinking you meant . Please correct me if I'm wrong.
The vertex form of a quadratic is 
. It is called that because it tells you the vertex (h,k).
So if you compare the two forms you should see -h=2 while k=2.
-h=2 implies h=-2.
So the vertex is (h,k)=(-2,2).
To find the y-intercept, set x=0 and find y.
So the y-intercept is (0,-6).
Answer:
3 or 4 i belive
Step-by-step explanation:
Hi there! :)
Find the perimeter by solving for y.
We know that a rectangle contains two pairs of parallel and congruent sides, therefore:
5y - 1 = 2y + 8
We can solve for y using this expression. Begin by subtracting 2y from both sides:
5y - 2y - 1 = 2y - 2y + 8
3y - 1 = 8
Add 1 to both sides:
3y - 1 + 1 = 8 + 1
3y = 9
Divide both sides by 3:
y = 3
Recall that the perimeter of a rectangle is:
P = 2l + 2w
Plug in the given expressions for the side lengths to find one equation:
P = 2(5y - 1) + 2(y - 1)
Simplify by distribution:
P = 10y - 2 + 2y - 2
Combine like terms:
P = 12y - 4
Plug in the solved value of y into this equation:
P = 12(3) - 4
P = 36 - 4
P = 32 cm.
Answer:
33%
Step-by-step explanation:
Answer:
x = -6, 6
Step-by-step explanation:
Isolate the variable, x. Find factors of all terms on the left:
x² + 36 = 0
x 6
x 6
(x + 6)(x + 6) = 0
Solve for x:
(x + 6) = 0
x + 6 = 0
x + 6 (-6) = 0 (-6)
x = -6
x² + 36 = 0
x -6
x -6
(x - 6)(x - 6) = 0
Solve for x:
x - 6 = 0
x - 6 (+6) = 0 (+6)
x = 6
x = -6 , 6.
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