Question

look at this graph:
what is the y-intercept?

Explanation:

Step1: Define y-intercept

The y-intercept is the point where the graph crosses the y-axis, which occurs when $x=0$.

Step2: Locate intersection on graph

Find the coordinate of the parabola at $x=0$. The graph crosses the y-axis at $(0, -7)$.

Answer:

$-7$