what is the concavity of a parabola that can be drawn of focus (-6,-3) and a directrix of x=5? it opens

Which statement is always true? a negative exponent cannot be part of an expression's numerator. a negative base raised to the power of 2 has a negative value. a negative base raised to the power of 2 has a positive value. any number to the first power is zero.

The sales totals at macy's food store have increased exponentially over the months. which of these best shows the sales in the first three months?

What is the difference between the equations of a vertical and a horizontal line?