Write the equation of the parabola with a focus (-2,4) and directrix y = 0.
a:y=1/8(x+2)^2+2
b:y=1/8(x-2)^2+2

How many real and imaginary solutions does the equation x^2-3x=-2x-7 have?

The volume of a sphere is increased by 6%. calculate the corresponding percentage increased in it area.

The graph shows the charges for a health club in a month. make a function table for the input-output values. writes an equation that can be used to find the total charge y for the number of x classes