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HACTEHA [7]
3 years ago
10

What is the range of y = (x - 5)^2 – 1?

Mathematics
1 answer:
Setler79 [48]3 years ago
8 0

1.  The graph is a parabola.

2. The parabola opens up, because there's no negative number in front of (x-5)^2.

3. The vertext is (5,-1), because of the vertex form.

This means that that -1 will be the least y-value used on the graph and the garph will open up from there.

The range is (-1, infinity) or { y | y > -1 }.

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Area = width * height
since the window is 20 inches higher than the width:
width +20 = height

640 = width * width+20
640 = width^2 +20*width
width^2 +20*width - 640 = 0
width = 17.203
**********************************************************
Double Check
if width = 17.203 then height = 37.203
area = 17.203 * 37.203 = 640 square inches Correct!!


8 0
3 years ago
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3 0
3 years ago
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5 0
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ElenaW [278]
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