Write the equation of the line in fully simplified slope-intercept form

Which of the following equations is of the parabola whose vertex is at (4, 3), axis of symmetry parallel to the y-axis and focus at (4, -3)? a.) y+3=1/24 (x+4)^2 b.)y-3=-1/24 (x-4)^2 c.)x-4=-1/24 (y-3)^2

How do i do this activity, is appreciated

At a sale this week, a desk is being sold for $213. this is a 29% discount from the original price. what is the original price?