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mina [271]
3 years ago
7

Which equation is a point-slope form of the equation of this line?

Mathematics
2 answers:
steposvetlana [31]3 years ago
8 0
Slope = (7 -1)/(1+2) = 6/3 = 2

equation of <span>point-slope form

y - 1 = 2(x + 2)

hope it helps</span>
lara31 [8.8K]3 years ago
3 0

Answer:

y-7=2(x-1)

Step-by-step explanation:

Point slope form of an equation is basically based on slope of line and point that lie on a line.

Slope refers to steepness of line.

In order to find slope of a line, we divide the difference of y-coordinates of two points by the difference of x-coordiantes of two points.

For two points \left ( x_1,y_ 1\right )\,,\,\left ( x_2,y_2 \right ), slope is given by m=\frac{y_2-y_1}{x_2-x_1}.

Point slope form is y-y_1=m(x-x_1)

Here, m is the slope of line .

\left ( x_1,y_1 \right )=\left ( 1,7 \right )\\\left ( x_2,y_2 \right )=\left ( -2,1 \right )

Slope:

m=\frac{1-7}{-2-1}=\frac{-6}{-3}=2

So, equation is y-7=2(x-1) .

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