If f(x) = 5x + 40, what is f(x) when x = –5?
–9
–8
7
15
2 answers:
25 would be ur answer happy to help
Answer:
Step-by-step explanation:
since f acts on x lets plug in -5 for x in f(x)
f(-5)=5(-5)+40=15
f(-5)=15
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