What is the discriminant of the quadratic equation 2x + 5x2 = 1?

Look at the following graph of the given equation. determine whether the equation is a function. explain why or why not.

You have a square piece of cardboard that measures 14 inches on each side. to build a box, you cut congruent squares out of each corner of the cardboard. use the picture to find the area of the cardboard you were used to build the box

Estimate the area under the curve f(x) = 16 - x^2 from x = 0 to x = 3 by using three inscribed (under the curve) rectangles. answer to the nearest integer.