Y is directly proportional to x squared if y=20 when x=2 find y when x= 5
1 answer:
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Option (A) represents the function and its inverse of a function option (A) is correct.
<h3>What is a function?</h3>
It is defined as a special type of relationship, and they have a predefined domain and range according to the function every value in the domain is related to exactly one value in the range.
We have a function and inverse of a function shown in the picture.
Checking for option (A):
Taking f(x):
To find the inverse of a function interchange the x and y variables:
f(x) → x
x → g(x)
Solving:
4x = g(x) + 10
g(x) = 4x - 10
Similarly, we can find the inverse of a function.
Thus, option (A) represents the function and its inverse of a function option (A) is correct.
Learn more about the function here:
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Question is Incomplete, Complete question is given below.
Latanya and George are saving up money because they both want to buy new bicycles. Latanya opened a savings account with $50. She just got a job and is determined to save an additional $30 a week. George started a savings account with $75. He is able to save $25 a week. Find the time (in weeks) when Latanya and George will have the same amount of money in their savings accounts.
Answer:
Latanya and George will have same amount after 5 weeks.
Step-by-step explanation:
Given:
Opening Amount in account of Latanya = $50
Amount deposited every week = $30
Let number of week be 'w'.
Total Amount in Latanya savings account will be equal to Opening Amount plus Amount deposited every week multiplied by number of week.
framing in equation form we get;
Total Amount in Latanya savings account =
Also Given:
Opening Amount in account of George = $75
Amount deposited every week = $25
Let number of week be 'w'.
Total Amount in George savings account will be equal to Opening Amount plus Amount deposited every week multiplied by number of week.
framing in equation form we get;
Total Amount in George savings account =
Now we need to number of week when both will have same amount.
Now to find number of week when both will have same amount we need to make both the equation same we get;
Hence Latanya and George will have same amount after 5 weeks.