The function
�
gg models the number of mosquitoes (in millions of mosquitoes) in a certain area as a function of rainfall (in centimeters) in that area.
A coordinate plane. The x-axis scales by zero point five and is labeled rainfall in centimeters. The y-axis scales by zero point five and is labeled mosquitoes in millions. The graph is a parabola function that opens down. The function starts at the origin and increases through one, three and has a maximum at two, four. The function decreases through three, three and has an x-intercept at four, zero.
A coordinate plane. The x-axis scales by zero point five and is labeled rainfall in centimeters. The y-axis scales by zero point five and is labeled mosquitoes in millions. The graph is a parabola function that opens down. The function starts at the origin and increases through one, three and has a maximum at two, four. The function decreases through three, three and has an x-intercept at four, zero.
Which of these statements are true?
Choose all answers that apply:
Choose all answers that apply:
(Choice A) More rainfall relates to more mosquitoes as long as rainfall is less than
2
cm
2 cm2, start text, space, c, m, end text.
A
More rainfall relates to more mosquitoes as long as rainfall is less than
2
cm
2 cm2, start text, space, c, m, end text.
(Choice B) More rainfall relates to more mosquitoes as long as rainfall is more than
2
cm
2 cm2, start text, space, c, m, end text.
B
More rainfall relates to more mosquitoes as long as rainfall is more than
2
cm
2 cm2, start text, space, c, m, end text.
(Choice C) When there is no rainfall, there are about
1
11 million mosquitoes.
C
When there is no rainfall, there are about
1
11 million mosquitoes.
(Choice D) When there is no rainfall, there are about
2
22 million mosquitoes.
D
When there is no rainfall, there are about
2
22 million mosquitoes.