Is given supply function Q = 2P2 + 5. Find the point elasticity at P = 4

In an improper fraction, is the numerator equal to, less than, or greater than the denominator

Isabel graphed the following system of equations. 2x – y = 6 y = -3x + 4 she came up with the solution (2,-2). what were the 3 steps she did to get that solution? (make sure they are in the correct order)

Check all that apply. f is a function. f is a one-to-one function. c is a function. c is a one-to-one function.