Write the equation of a parabola, in factored form, with x-intercepts at (3, 0) and (-6, 0) that passes through the point (2, 16)

The length and a quarter of the width of a rectangle add up to 7 in, while the length and the width add up to 10 in. what are the rectangle's length and width?

How do you graph linear equation x+y=4

The anwser cause i do not understand just plez