Which of the quadratics has a graph with x-intercepts of 5 and −1?
A) y = x2 − 4x − 5
B) y = x2 − 5x − 4
C) y = x2 + 4x − 5
D) y = 2x2 − 4x − 5

I'm confused on this could anyone me and show me what i need to do to solve it.

A25- foot ladder leans against a building and reaches a point of 23.5 feet above the ground .find the angle that the ladder makes with the building

Alcoa was $10.02 a share yesterday. today it is at $9.75 a share. if you own 50 shares, did ou have capital gain or loss ? how much of a gain or loss did you have ? express the capital gain/loss as a percent of the original price