1.if f(x) = 2x2 − 30, find f(4).
a.35
b.−14
c.2
d.17
2.if f(x) is the total number of bacteria present in a sample after x hours, which of the following statements best describes the meaning of f(2) = 12?
a. the total number of bacteria present in the sample after 12 hours is 2.
b. the total number of bacteria present in the sample after 6 hours is 2.
c. the total number of bacteria present in the sample after 2 hours is 12.
d. the total number of bacteria present in the sample after 6 hours is 12.
3.if h(x) = −3x − 10, find h(−3).
a. −19
b.−1
c.1
d.2.3
4.choose the equation of the vertical line passing through the point (−4, 2).
a. y = −4
b. x = −4
c. y = 2
d. x = 2