Which equation represents a parabola that has a focus of (0, 0) and a directrix of y=2? • x^2 = -y
• x^2 = -4y
• x^2 = -(y - 1)
• x^2 = -4(y - 1)

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

Pls brainliest will be awarded if answer is correct

What is always true when two whole numbers are subtracted?