How would I solve these problems pls explain it well.

Aline has a slope of 1/4 and passes through point (0.4,-1/2). what is the value of the y-intercept?

Plot the points (0,6), (3,15.8), and (9.5,0) using the graphing tool, and find the function

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.