Why the derivative of (x^2/a^2) = (2x/a^2)? ​

For what value of x does 4x = (1/8) x + 5?

List x1, x2, x3, x4 where xi is the left endpoint of the four equal intervals used to estimate the area under the curve of f(x) between x = 4 and x = 6. a 4, 4.5, 5, 5.5 b 4.5, 5, 5.5, 6 c 4.25, 4.75, 5.25, 5.75 d 4, 4.2, 5.4, 6

What is the distance from zero if a quadratic function has a line of symmetry at x=-3 and a zero at 4