What is the equation of the cosine function shown?
i know the midline is 2 and the amplitude is 8 but i don’t know the rest and how the whole equation will be.

What is the standard form of -5x^2+2x^4-11+x^3+3x

The parabola x= √y-9 opens: a.)up b.)down c.)right d.)left

Question 13 (1 point) jerome is starting a new job. his contract states he will earn $42,000 the first year, and will get a 4% raise per year. which function s(x) represents jerome's salary after a certain number of years, x?