Mason wants to buy some pull toys for his dogs. Each toy costs $3. He knows that 1 toy costs $3, 2 toys cost $6, and 3 toys cost
1 answer:
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Answer:
<u>Question 1</u>
The function is one-to-one, so it does have an inverse.
The inverse of +6 is -6, so
Therefore, g(x) is the inverse of f(x).
<u>Question 2</u>
The function is one-to-one, so it does have an inverse.
To find the inverse, replace f(x) with y:
Rearrange the equation to make x the subject:
Replace x with and y with x:
Therefore, g(x) is the inverse of f(x).
Jack was planting a tree. He was to dig a hole that was 3 feet deep for every 5 feet of tree height. How deep should he dig the hole for a tree that is 17feet high.
Calculations
Cross multiplication
= 
5x = 2 x 13
Divide by 5 to isolate x
= 
x = 10.2
Answer = 10.2
Calculations
Cross multiplication
5x = 2 x 13
Divide by 5 to isolate x
x = 10.2
Answer = 10.2