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sukhopar [10]
2 years ago
7

Write in slope intercept form an equation of the line that passes through the given points. (-1,7) , (3,-1)

Mathematics
1 answer:
Tcecarenko [31]2 years ago
6 0

Answer! :

y = -2x + 5

Step by Step! :

slope intercept form:

y = mx + b

m being slope, b being the y intercept.

To find the slope, use this equation:

y^2 - y^1 / x^2 - x^1

Plug in your points.

(-1) - (7) / (3) - (-1)

-8 / 4

-2 is your slope! (y = -2x + b)

To solve for b, plug in any one of your points and solve for b. Let's use (3, -1)

-1 = -2(3) + b

-1 = -6 + b

5 = b

Your new equation is...

y = -2x + 5

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Answer: the graph crosses the x-axis at x = -3

<u>Step-by-step explanation:</u>

y = (x + 3)³

To find where the graph crosses the x-axis, let y = 0 and solve for x:

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Since multiplicity is an ODD number, the graph CROSSES the x-axis at x = -3

<em />

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2 years ago
나<br> How do you do this
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I have attached the image showing the location of the three schools.

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