Which function has x-intercepts of -1 and 1 and contains the point (2,3)? y=x^2-1, y=x^2+3, y=x^2-3, y=x^2+1

The first one i think
x^2 - 1

1. isolate the variable, in this case, d. subtract 35.5 on both sides of the equation.2. 52 subtracted by 35.5 is 16.53. therefore your answer would be d= 16.5this is the basics of pre algebra, isolating variable through adding, subtracting, multiplying, and dividing, if you have any other questions to ask just comment!