2 years ago

Hello! Please Help Its just one simple Question ^^

Mathematics

1 answer:

Flura [38]2 years ago

4 0

$\\ \sf\longmapsto f(x)=112-kx$

f(-3)=121

Put -3 in f(x)

$\\ \sf\longmapsto f(-3)=121$

$\\ \sf\longmapsto 112-k(-3)=121$

$\\ \sf\longmapsto 112+3k=121$

$\\ \sf\longmapsto 3k=9$

$\\ \sf\longmapsto k=3$

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