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Write the equation of the line in y = mx + b form.
I need help

Write the equation of the line in y = mx + b form. I need help-example-1
User Morgoth
by
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2 Answers

1 vote

Answer: y = -4x+1

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Step-by-step explanation:

The two points on this line are (-1,5) and (0,1)

Let's use the slope formula

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

m = (1-5)/(0-(-1))

m = (1-5)/(0+1)

m = -4/1

m = -4

The slope is m = -4

If we started at (-1,5) and moved down 4 and to the right 1, then we arrive at (0,1). The motion "down 4, right 1" is directly tied to the slope -4 since -4 = -4/1 = rise/run

The y intercept is b = 1 since this is the location where the graph crosses the y axis.

With m = -4 and b = 1, we go from y = mx+b to y = -4x+1

User Joshkunz
by
8.5k points
3 votes
wouldn’t it be y=-4x+1
User Doug Fawley
by
8.7k points

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