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Mathematics 20 Online
OpenStudy (anonymous):

Given the function T(z) = z – 8, find T(–2). A. –10 B. 10 C. –6 D. 6

OpenStudy (ajprincess):

plug in -2 in place of z in z-8. Does that help?

OpenStudy (anonymous):

sooo -2=z-8

OpenStudy (ajprincess):

nope. T(z)=z-8 T(-2)=-2-8

OpenStudy (anonymous):

is it 6

OpenStudy (ajprincess):

nope

OpenStudy (anonymous):

-6

OpenStudy (precal):

when the signs are the same, you add the numbers and keep the same sign

OpenStudy (stamp):

|dw:1364226689422:dw|

OpenStudy (anonymous):

so its -8

OpenStudy (stamp):

no

OpenStudy (stamp):

Start at the point -2, and count 8 places in the negative direction

OpenStudy (stamp):

|dw:1364226766906:dw|

OpenStudy (anonymous):

-10

OpenStudy (precal):

we could use the zero monster

OpenStudy (precal):

|dw:1364226802543:dw|

OpenStudy (precal):

|dw:1364226830148:dw|

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