Simplify. 12k - 6 + (3k)(4) is it -6, 6, 24k + 6, or 24k - 6?

its actually super easy, but i am kind of confused. : t

y do u put "subscirbe to ence" on a app for ppl who need with their work?

1 number

if we use a graphing calculator, there is only one such number that satisfies the conclusion of the mean value theorem, that is, a number such that

where the right-hand side is the average rate of change of f on the interval [0.5,0.75], which is the slope of the secant line.

in the attached graph, the black line is the secant line which has its slope as the average rate of change of f on [0.5,0.75], while the orange line is the only tangent line to the graph of f in the interval that satisfies the mvt conclusion.