Answer: first number is the slope, second number is the y intercept
1: 2 , -8
2: -2/3, -2
3: 1/2, 5
4: -1/3, 3
5: 1, 0
6: -2/3, 4
7: 3, 16
8: -1/4, 8
9: 1/4, 6
Explanation:
Y-INTERCEPT:
The y- axis is the middle line going vertical (up down)
You have to look at the CROSSING line to find through which number the line crosses the y-axis
on #1 the line crosses exactly through -8 on the y axis, therefore -8 is the y-intercept
SLOPE:
the slope is (rise over run) rise/ run: to find it the top number is the rise (how far up you go), the bottom number is the run (how far over you go)
you want to find the next point of interception from the y intercept that goes directly through both an x and y plot, so for #1: (1,4) goes right though a x and y plot. You want to start at the y-intercept and count how many squares OVER you go (2) and how many squares UP you go (1) to get from the y-intercept to the next perfect intercept.
With the 2 squares over and 1 square up, the slope is 2/1 or 2
If the line is going DOWN from left to right, whatever slope you get is NEGATIVE