Set up and use a system of linear equations to solve. A number is 9 more than another number. Twice the sum of the two numbers is 10. Find the two numbers.
Enter your two numbers separated by a comma.

The function y= x - 4x+ 5 approximates the height, y, of a bird, and its horizontal distance, x, as it flies from one fence post to another. all distances are in feet. complete the square to find and interpret the extreme value (vertex). select two answers: one extreme value and one interpretation.