Mr. Gonzalez has a monthly salary of x dollars. He makes a monthly payment for his car for $350. A third of the rest of his salary is used to pay for credit cards. Which function
can be used to determine the amount of money that Mr. Gonzalez spends on credit card?
F F(X) = 350 -
G f (x) = +350
H |(x) = x+350
j f() = *-*350

The position of a moving particle is given by the position function: f(t)=-9t-t^2-0.2t^3+0.1t^4 a. at what time does the particle reverse direction? b. when is the displacement positive? (round one decimal place and answer in interval notation) c. when is the displacement negative? (round one decimal place and answer in interval notation) d. when is the particle’s acceleration positive? (round one decimal place and answer in interval notation) e. when is the particle’s acceleration negative? (round one decimal place and answer in interval notation)