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VikaD [51]
3 years ago
8

Find f(k - 1) when f(x) = 5x^2+ 4x – 5.

Mathematics
1 answer:
bekas [8.4K]3 years ago
5 0

Plug in k-1 to each x in the function.

f(k-1)=5(k-1)^2+4(k-1)-5

f(k-1)=5(k^2-2k+1)+4k-4-5

f(k-1)=5k^2-10k+5+4k-4-5

f(k-1)=5k^2-6k-4

Hope this helps.

頑張って!

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