Unit 8 Review

• 6000

• 5500

• 3000

• 15000

• The equation has no real solutions.

• The equation has X = ± 2 as its solutions

• The equation has X = 2 as its only solution.

The concentration (in milligrams per liter) of a medication in a patient's blood as time passes is given by the data in the following table.

Which of the following equations best represents this data?

• The zeros are -3 / 2 and 3, because f(x) = ( x - 3 ) ( 2x + 3)

• The zeros are 3 / 2 and -3, because of f(x) = (x-3)(2x+3)

• The zeros are 3 / 2 and 3, because f(x) = (x+3)(2x-3)

• The zeros are -3 / 2 and -3, because f(x) = (x+3)(2x-3)

• 6

• 7

• -2

• 10

• His work is incorrect because the factors should be (x + 12) and (x - 6)

• His work is correct because the solutions are X = -9 and X = 8

• His work is incorrect because the equation cannot be factored

• His work is correct because the factors should be (x + 9) and (x - 8)