1. Find the slope of a line that passes through (-2 -3) and (1 1).
a. 1/3
b. 1
c. 2
d. 4/2
2. For the equation -4y=8x, what is the constant of variation?
a. -4
b. -2
c. 1
d. 2
3. What is an equation in slope-intercept form for the line that passes through the points (1,-3) and (3,1)?
a. y=3x+1
b. y=x-3
c. y=2x+5
d. y=2x-5
8 answers
I think B is -2
C is Y=2x-5
I think A is 1/3
Ok thanks Shalee :)
The first one was 4/3 but the other two were right thanks so much :)
oh :o
but yw
but yw
I just noticed I wrote 4/2 instead of 4/3 oops
1. slope = (1+3)/(1+2) = 4/3 , which is not in your list
2. -4y = 8x
y = -2x , so constant of variation is -2
3. d)
2. -4y = 8x
y = -2x , so constant of variation is -2
3. d)
8 answers