Mathematics, 06.11.2020 20:50, surfer89

PLZ HELP ITS NOT A DIFFICULT PROBLEM BUT I DONT UNDERSTAND WILL MARK BRAINLIEST FOR GOOD ANSWERS :)
The instructions say to use foil or a generic rectangle and find the x-intercepts. Then sketch the parabola
y=x^2−2x−15

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PLZ HELP ITS NOT A DIFFICULT PROBLEM BUT I DONT UNDERSTAND WILL MARK BRAINLIEST FOR GOOD ANSWERS :)...