Question

Find the equation of the line that goes through the points (4, –1) and (2, –5)

Answer 1

y=2x-9

rise over run = y2-y1/x2-x1.

plug the points into the formula:
`(-5-(-1))/(2-4)`

Finish it up:
`(-4)/(-2) = 2`

hence the 2. now it intercepts the y-axis at -9 hence the 9.

the formula of the equation is y=mx+b. m is the slope (2) and b is the y-intercept (-9) if you plug those into the equation you get y=2x-9

Answer 2

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