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Klio2033 [76]
3 years ago
5

Slope intercept form? A line passes through the point (10,4) and has a slope of -1 over 2 .

Mathematics
2 answers:
Art [367]3 years ago
7 0

Hi There!

You have to find the second point.

4 - ? = -1

10 - ? = 2

4 - 5 = -1

10 - 8 = 2

Second Coordinate: (8, 5)

Y intercept is 13

Slope Intercept Form: y = -1/2x + 13

Hope This Helps :)

Law Incorporation [45]3 years ago
3 0

The slope-intercept form:

y=mx+b

m - slope

b - y-intercept

We have the slope m=-\dfrac{1}{2} and the point (10, 4).

Substitute the value of slope and the coordinates to the equation of line:

y=-\dfrac{1}{2}x+b\\\\4=-\dfrac{1}{2}(10)+b\\\\4=-5+b\qquad|\text{add 5 to both sides}\\\\9=b\to b=9

Answer: y=-\dfrac{1}{2}x+9

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ax^2 + bx + c = 0

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ax^2 + 2x + c = 0

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x^2 + 1 = 2x - 3

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x^2 - 2x + 4 = 0   <em>This is not it!</em>

Let's look at choice B.

x^2 - 2x - 1 = 3

Subtract 3 from both sides.

x^2 - 2x - 4 = 0     <em>This is not it!</em>

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x^2 + 2x - 1 = 3

Subtract 3 from both sides.

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