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Mathematics 25 Online
OpenStudy (anonymous):

Find f(-5) if f(x) = |x + 1|.

jimthompson5910 (jim_thompson5910):

Replace x with -5 and evaluate

jimthompson5910 (jim_thompson5910):

f(x) = |x + 1| f(-5) = |-5 + 1| Tell me what you get

OpenStudy (anonymous):

would I add or subtract the two negs.?

jimthompson5910 (jim_thompson5910):

Add -5 to 1 to get ???

OpenStudy (anonymous):

-4

jimthompson5910 (jim_thompson5910):

Now take the absolute value of that

OpenStudy (anonymous):

so -5 and -4?

jimthompson5910 (jim_thompson5910):

what do you mean

OpenStudy (anonymous):

divide?

jimthompson5910 (jim_thompson5910):

|-4| = ???

OpenStudy (anonymous):

oh 4

jimthompson5910 (jim_thompson5910):

so f(-5) = 4

OpenStudy (anonymous):

oh ok! thanks!

jimthompson5910 (jim_thompson5910):

you're welcome

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