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Ulleksa [173]
2 years ago
14

Find an equation in slope-intercept form of the line that has slope –2 and passes through point (1,9)

Mathematics
1 answer:
lozanna [386]2 years ago
8 0

Answer:

y=-2x+11

Step-by-step explanation:

slope intercept form is y=mx+b m being the slope and b the y-intercept

using the slope you can calculate the y intercept

m=-2

y-intercept(b)=11

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Luda [366]

Answer:

8

Step-by-step explanation:

The distance or the length between two points can be computed using the formula:

d = \sqrt{(X_2-X_1)^2+(Y_2-Y_1)^2}

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X₂ = x-coordinate of the second point

Y₁ = y-coordinate of first point

Y₂ = y-coordinate of the second point

When we right down the coordinates of a point, we always start with the X and then the Y.

(X,Y)

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Point 2: (5,4)

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X₁ = -3

X₂ = 5

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Now we just fill in the formula:

d=\sqrt{(X_2-X_1)^2+(Y_2-Y_1)^2}\\\\ =\sqrt{(5-(-3))^2+(4-4)^2}\\\\ =\sqrt{8^2 + 0^2}\\\\ =\sqrt{8^2} \\\\=8

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3 years ago
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