Question

Quick!

What is the equation of the line shown in the graph? (-3,1) (2,-4) Drag and drop the expressions to write the equation of the line in slope-intercept form.


Options:

x
2x
-x
-2x
1
-1
-4

Answer 1

y=-x-2

Explanation:

To find the slope of the line, you can use the slope formula. I did this with (-3,1) and (2,-4) to get: (1+4)/(-3-2). This ends up as -5/5, which simplifies to -1.

next I plugged in the slope and one point into the line equation: y=mx+b. I plugged in (-4)=(-1)(2)+b. This equated to b=-2.

Check Work:

The equation -4=(-1)(2)-2 is true

The equation 1=(-1)(-3)-2 is true