I would think it would be -39 points
Holly would have to climb 92 flights of stairs in the fifth week
Hmmm the y-intercept is at -2? what does that mean? well, is where the graph "intercepts" or touches the y-axis, and when that happens, x = 0, so the point is really ( 0 , -2 ).
and we know where the vertex is at. Let's assume a vertical parabola, in which case the squared variable is the "x".
1 yard = 3 feet
7 yard = 21 feet
21 + 2 = 23 feet