01-05-2019
Mathematics

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Which equation is satisfied by all three of the plotted points?

Which equation is satisfied by all three of the plotted points class=

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kudzordzifrancis kudzordzifrancis

11-05-2019

ANSWER

B. y=2x+1

EXPLANATION

The graph has a y-intercept of 1.

Let y=mx +b be the equation of the straight line graph.

where b=1 is the y-intercept.

We put this value into the equation to get,

y=mx +1.

Thie point (1,3) must also satisfy this line.

3=m(1)+1

m=3-1

m=2

The equation is

y=2x+1

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