Question

15 POINTS!

Use the coordinates of the labeled points to find a point slope equation of this line -5,2 -1,0
Given the point slope equation y+2=-3(x+1) what is the slope of the line?

Answer 1

-3

Explanation:

Point slope means y-y=m(x-x)

m is the slope

in this case, -3 is the slope

y+2=-3(x+1)

2. Use the coordinates of the labeled points to find a point slope equation of this line -5,2 -1,0.

The answer would be (slope-intercept): y=-0.5x-0.5

To find the answer, you'd find the slope from the two points...

y=-0.5x+b

then substitute y and x and add in x and y values from a point (I'll use the point -5,2)

2=-0.5(-5) + b

simplify and isolate to get

b=-0.5