What 2/5×3/7 but, once you get an answer make sure you simplified

Explain how you do each step what term makes it inconsistent y=2x - 4 ?

Which of the following equations is of the parabola whose vertex is at (2, 3), axis of symmetry parallel to the y-axis and p = 4? a.)y-3 = 1/16 (x-2)^2 b.)y+3 = -1/16 (x+2)^2 c.)x-2 = 1/16 (y-3)^2

Give me the equations of two lines that have the same slope but are not parallel.