Please help me with this question ASAP

Write the equation for the parabola that has x− intercepts (−2,0) and (4,0) and y− intercept (0,4).

How do you determine whether a relationship represented as as graph is linear or nonlinear

In right ∆abc shown below, the midpoint of hypotenuse ac is located at d and segment bd is drawn.if ab = 12 and bc = 16, then explain why bd = 10. hint: consider what you know about the diagonals of a rectangle.