### Home > INT2 > Chapter 5 > Lesson 5.2.4 > Problem5-102

5-102.

Write an equation for each representation of a quadratic function given below.

1. Use the $x$-intercepts to help you write the equation.

$y = (x + 3)(x - 1) = x^2 + 2x - 3$

1.  $x$ $–4$ $–3$ $–2$ $–1$ $0$ $1$ $2$ $3$ $4$ $y$ $12$ $5$ $0$ $–3$ $–4$ $–3$ $0$ $5$ $12$

The $x$-intercepts are the points where $y = 0$.

1. Which function has the largest maximum value?

Neither, they both increase indefinitely.