Answer:
A. Slope is -5. Y-intercept is (0,7)
Explanation:
1. Find the slope using the slope formula and the coordinates
Remember, the slope formula is: y2-y1/x2-x1
You'll use the coordinates (0,7) (4, -13) to plug into the formula.
-13-7/4-0
= -20/4
= -5
Slope is -5
2. Find the y-intercept.
First, write the equation of the line in point-slope form: y-y1=m(x-x1)
M is slope and y1 and x1 can be from any ordered pair (as long as they're from the same one). Let's use (0,7)
y-7=-5(x-0)
Simplify the equation.
y-7=-5x+0
y=-5x+7
3. Now the equation is in y-intercept form, or y=mx+b. Again, M is slope. B is the y intercept. So, the y-intercept is 7