Question of the Day

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6/1

Jan

28

2013

226,421 responses

Question of the Day Statistics
	Number Answered
Correct	123,981
Incorrect	102,440

54% correct

Mathematics > Standard Multiple Choice

Read the following SAT test question and then click on a button to select your answer.

If the function function f is defined by function f of x = (x minus a) times (x minus b) over (x minus c) , where 0 less than a less than b less than c , for which of the following values of is undefined?

roman numeral 1

roman numeral 2

roman numeral 3

Answer Choices

Hint

Consider values of for which the fraction (x minus a) times (x minus b) over (x - c) is not defined. In particular, what happens when x = a , x = b , or x = c ?

Question of the Day

Can you answer today's question?

Register Next Tests:
6/1

Jan

28

2013

226,421 responses

Question of the Day Statistics
	Number Answered
Correct	123,981
Incorrect	102,440

54% correct

Mathematics > Standard Multiple Choice

Read the following SAT test question and then click on a button to select your answer.

If the function function f is defined by function f of x = (x minus a) times (x minus b) over (x minus c) , where 0 less than a less than b less than c , for which of the following values of is undefined?

roman numeral 1

roman numeral 2

roman numeral 3

Answer Choices

Answer

If x = a , then (x minus a) times (x minus b) over (x minus c) = (a minus a) times (a minus b) over (a minus c) = 0 over (a minus c) = 0 . If x = b , then . If x = c , then , which is not defined because division by is undefined. Therefore, of the three values, , , and , the only one for which function f is undefined is . Thus the correct response is roman numeral 3 only.