1. Suppose that you are playing a math quiz game in your Android phone and you initially answered 16 out of 30 questions. What function will represent the ratio of your score if x is the number of the remaining questions that you need to answer?
a. r(x) = 16-x/30-x
b. r(x) = 30-x/16-x
c. r(x) = 16+x/30+x
d. r(x) = 30+x/16+x
2. What value of x makes the function (x) =5x/6-2x equal to zero?
a. -1
b. 0
c. 1
d. 2
3. What is the y-intercept of the function (x) =2x²/x²+2x-3?
a. (0, -3)
b. (0, 2)
c. (0, -⅓)
d. (0,0)
4. What are the vertical asymptotes of the function (x) =x-6/x²-4?
a. x = ±1
b. x = ±2
c. x = ±4
d. x = ±6
5. The Concentration C of an antihistamine drug in patient's bloodstream t minutes after injection is given by C(t) =59t/t²+25
What is the concentration C of a drug 2 hours after injection?
a. 2.09
b. 4.51
c. 3.45
d. 4.87​