If f(x) = 7 + 4x and g(x)=1/2x ,what is the value of (f/g)(5)?

Answer:
D) 270
Step-by-step explanation:
Given: f(x) = 7 + 4x and g(x) = 1/2x
[f/g)(x) = f(x)/g(x)
Now plug in the given functions in the above formula.
= (7 + 4x) / (1/2x)
If we have fraction in the denominator, we can flip the fraction and multiply with the numerator.
Therefore, (f/g)(x) = (7 + 4x) * 2x /1
= (7 + 4x)*2x
(f/g)(x) = 14x + 8x^2
We have to find (f/g)(5). Now plug in x = 5 and evaluate the function.
(f/g)(5) = 14(5) + 8 (5)^2
= 70 + 8*25
= 70 + 200
(f/g)(5) = 270
Therefore, answer is D) 270
Hope you will understand the concept.
Thank you.
Answer:
Choice d is the answer.
Step-by-step explanation:
We have given two functions.
f(x) = 7+4x and g(x) = 1 / 2x
We have to find the quotient of given functions.
(f/g)(x) = ? and (f/g)(5) = ?
The formula to find quotient is:
(f/g)(x) = f(x) / g(x)
Putting values in above formula, we have
(f/g)(x) = (7+4x) / (1/2x)
(f/g)(x) = (7+4x)(2x)
(f/g)(x) = 14x+8x²
Putting x = 5 in above equation , we have
(f/g)(5) = 14(5)+8(5)²
(f/g)(5) = 70+200
(f/g)(5) = 270 which is the answer.