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Write equation based on the graph?draw the problem or calculate it.

Write equation based on the graph?draw the problem or calculate it.-example-1
User Ooak
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1 Answer

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The equation must be written in slope-intercept form

y= mx +b

m= slope

b= y-intercept (where the line crosses the y-axis)

to find the slope apply the slope formula:


m=(y2-y1)/(x2-x1)

Use the points from the graph:

(x1,y1) = (-5,-4)

(x2,y2)= (5,2)

Replace


m=(2-(-4))/(5-(-5))=(2+4)/(5+5)=(6)/(10)=(3)/(5)

The line crosses the y axis on y=-1

b=-1

Equation:

y= 3/5x -1

User BD At Rivenhill
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