Homework Help: find C

Posted by Jen on Saturday, October 28, 2006 at 9:49pm.

Graph of f(x) = -2x + C passes through (-2,7)
How do I find C.
TIA

Since f(x) = 7 when x is -2,
7 = -2(-2) + C = 4 + C

C = 3

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