Which of the following graphs represents the function f(x) = −x2 − x + 6

True or false? a circle could be circumscribed about the quadrilateral below.

John used linear combination to solve the system of equations shown. he did so by multiplying the first equation by -3 and the second equation by another number to eliminate the x-terms. what number did jonas multiply the second equation by? 4x-6y=23x+5y=11

Find the solution on the interval [0, 2pi)