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umka21 [38]
3 years ago
5

If f(x)=6x-15 and f(a)=30, what is the value of a? Please help

Mathematics
1 answer:
mariarad [96]3 years ago
7 0

Answer:

a=7.5

Step-by-step explanation:

Given the function f(x)=6x-15 and the output 30 when x=a, we can write the equation:

6a-15=30

6a=45

a=7.5

We can insert the value of a into the function to verify the output equals 30:

f(a) = 6a-15

= 6(7.5)-15

=30

∴ We have verified that a=7.5

Hope this helps :)

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