Derive the equation of the parabola with a focus at (2, 4) and a directrix of y = 8. (2 points) f(x) = −(x − 2)2 + 6

f(x) = (x − 2)2 + 6

f(x) = −(x + 2)2 + 8

f(x) = (x + 2)2 + 8

What happens to the area as the sliders are adjusted? what do you think the formula for the area of a triangle is divided by 2?

Last week jason walked 3 1/4 miles each day for 3 days and 4 5/8 miles each day for 4 days. about how many miles did jason walk last week?

Ahovercraft takes off from a platform. its height (in meters), xx seconds after takeoff, is modeled by: h(x)=-2x^2+20x+48h(x)=−2x 2 +20x+48 what is the maximum height that the hovercraft will reach?