If a diagram shows a cube sliced by a plane horizontally through the solid what is the shape of the cross-section

Find the slope of the line y =8/9x + 1.

An equation of the line tangent to y=x^3+3x^2+2 at its point of inflection is

The graph shows the function f(x) = (2.5)x was horizontally translated left by a value of h to get the function g(x) = (2.5)x–h.