I need help with my geometry homework.

1.  substitute in for parabola, substituting for the same equation does nothing

2. the factors for y^2+y-20 are (y+5)(y-4)

3. solutions are y=4 or -5

4. substituting y=-5 in the equation

-5 = x^2 -5

0=x^2

x=0

therefore the three points of intersection are (0,-5), (-3,4), (3,4)

exa:

)

3+11

14

step-by-step explanation:

from this example, we can see that subtracting with integers is the same as adding the opposite. we can solve using a number line or by using the saying "keep, change, change" to us solve. it is important to remember that we can subtract a negative and end up with a larger number than we started with.