Question

What are the x– and y–intercepts of the quadratic equation y = x^2 + 2x – 3

Answer 1

To get x-intercept, put y=0 in the equation and to get y-intercept, put x=0 in the equation

Answer 2

For a quadratic equation in standard form like that, the y-intercept is always equal to the constant at the end. To find the x-intercepts (if any), you'll have to factor the trinomial or use quadratic formula. This one looks easily factorable.

Answer 3

So, are the x-intercept's, -3 and 1 OR 3 and -1??

Answer 4

-3 and 1. Set the factors equal to zero and solve for x.

Answer 5

You can also check by subbing them back in to the equation to see if they work.