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LUCKY_DIMON [66]
3 years ago
11

Y = x2 + 4x – 117 i need to know the roots and vertex

Mathematics
1 answer:
velikii [3]3 years ago
4 0

Answer:

Vertex : (-2,-121)

Roots : x=9,-13

Step-by-step explanation: Rewrite the vertex form and use this form to fine the vertex (h,k).

The roots (zeros) are the x values where the graph intersects the x-axis. To find the roots (zeros), replace y with zero and solve for x.

I hope this helps you out.

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Use point-slope form to write the equation of a line that passes through the point
blagie [28]

Answer:

y - 8 = -2(x - 9)

Step-by-step explanation:

Given the slope, m = -2, and the point, (9, 8):

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slope (<em>m </em>) = -2

We can substitute these values into the following <u>point-slope form</u>:

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3 years ago
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Step-by-step explanation:

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3 years ago
A vegetable garden with an area of 200 square feet is to be fertilized. If the length of the garden is 1 foot less than three ti
charle [14.2K]
Ok so I like to go in steps with these questions- first draw a picture and identify your variables.

W=width
L= 3w-1

Now we know that length times width gets us area so we plug in our variables into the area equation.

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When you foil that equation you end up with a quadratic : 3w^2-w-200 = 0

Either factor that or use the quadratic formula to get
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Final answer:

w= 8.33ft
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*Now I simplified the decimals a little bit so you end up with 199.8ft^2 for the area so just add a few decimals on here and there*
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