Answer:
y = -45x + 13
Step-by-step explanation:
The equation is *** y = [tex]-5x^{2}[/tex] - 20x +13 ***
First: you have to look at [tex]-5x^{2}[/tex] which would equal -25x
Second: you have take the -25x and put into the equation... y = -25x - 20x +13
Third: You have subtract -25x - 20x which equals -45x
Lastly: Now you have y = -45x + 13 and since 13 does NOT have a variable like -45x does, you then know that you have finished the equation
