Select all the systems of equations that have exactly one solution. Help A. y =3x + 2; y = −3x + 5
B. y = 6x + 1; y = x + 1
C. y = 5x + 3; y = 5x −2
D. x + y = 11; x + y = −4

Does the function satisfy the hypotheses of the mean value theorem on the given interval? f(x) = 4x^2 + 3x + 4, [−1, 1] no, f is continuous on [−1, 1] but not differentiable on (−1, 1). no, f is not continuous on [−1, 1]. yes, f is continuous on [−1, 1] and differentiable on (−1, 1) since polynomials are continuous and differentiable on . there is not enough information to verify if this function satisfies the mean value theorem. yes, it does not matter if f is continuous or differentiable; every function satisfies the mean value theorem.