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How do I find the slope and y intercept of this table

How do I find the slope and y intercept of this table-example-1

1 Answer

3 votes

we can select any two points and find slope

(x,y)=(-1,1)

(x,y)=(1,2)

now, we can use slope formula


m=(y_2-y_1)/(x_2-x_1)


m=(2-1)/(1+1)


m=(1)/(2)

now, we can use formula


y=mx+b

Here b is y-intercept

we can plug back m


y=(1)/(2)x+b

now, we can take any one point to find b

(x,y)=(-1,1)


1=(1)/(2)*-1+b


b=(3)/(2)............Answer

User Leisa
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