End behavior of f(x)=-4(1/2)^x+4

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

Solve each quadratic equation by factoring and using the zero product property. x^2 + 18x = 9x

How can (square root of 25) ^2 be rewritten?