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Write an equation of a line in slope-intercept form with two ordered pairs of (1, 13) and (2, 21).
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May 27, 2018
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Write an equation of a line in slope-intercept form with two ordered pairs of (1, 13) and (2, 21).
Mathematics
middle-school
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use this fraction:21-13
2-1
That goes to 7/1, or 7. The slope is 7.
Use the equation y=mx+b
y=7x+b
substitute x and y for numbers
13=7(1)+b
Simplify
13=7+b
Subtract 7 from both sides
6=b
The equation in slope intercept form=
y=7x+6
Radu Ursache
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May 28, 2018
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Radu Ursache
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y=8x+5, that is the answer
Pedro Boechat
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May 31, 2018
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Pedro Boechat
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