The inverse of the the function above is y =
In order to find the inverse of any function, you need to switch the x and y values. Once you've done that, you need to solve for the new y value. The resulting equation will be your inverse. The work for this one is below.
y = 2x^2 - 8 ----> Switch the terms
x = 2y^2 - 8 ----> Add 8 to both sides.
x + 8 = 2y^2 ----> Divide both sides by 2.
= y^2 ----> Now take the square root of both sides.
= y
What's left is your inverse. You can change the order so that it is in a more acceptable form.
y =
Answer:
the first one
Step-by-step explanation:
Answer:
n = -3 or 8
Step-by-step explanation:
2n² = 10n +48 (rearrange)
2n²- 10n - 48 = 0 (divide all terms by 2)
n²- 5n - 24 = 0
by factorization,
(n+3)(n-8) = 0
hence,
n+3 = 0 ----> n = -3
or
n-8 = 0 ----> n = 8
Answer:
11
Step-by-step explanation:
So when y=3 and z=5/3 you replace y and z with that number that is equivalent to it (meaning replace y with 3 and z with 5/3)
2(3)+3(5/3)
Multiply:
6+5
Add:
11
So when y=3 and z=5/3 the answer will be 11
Question 13: The answer is D
Question 7: The answer is C
Question 14: The answer is B
And the question for the last Pic, the correct graph is B.