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marta [7]
3 years ago
14

If (-2,11)and(9,22) are two anchor points on the trend line, then find the equation of the line​

Mathematics
1 answer:
Elza [17]3 years ago
4 0

Answer:

The equation of the line is y=x+13

Step-by-step explanation:

step 1

Find the slope

The formula to calculate the slope between two points is equal to

m=\frac{y2-y1}{x2-x1}

we have

(-2,11) and (9,22)

substitute

m=\frac{22-11}{9+2}

m=\frac{11}{11}

m=1

step 2

Find the equation in slope intercept form

y=mx+b

where

m is the slope

b is the y-intercept

we have

m=1

point\ (-2,11)

substitute in the equation and solve for b

11=(1)(-2)+b

11=-2+b

Adds 2 both sides

b=11+2\\b=13

The equation of the line is

y=x+13

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