What is -19 + 37? -56 -18 18 56
1 answer:
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Consider two integers . We say that
is a multiple of
if
is evenly divisible by
:
Alternatively, we can say that is a multiple of
if there exists an integer
such that
So:
- 4 is not a multiple of 4, because 4/8 is not an integer.
- 8 is a multiple of 8, because 8/8=1
- 20 is not a multple of 8, because 20/8 is not an integer
- 40 is a multiple of 8, because 40/8=5
Answer:
⇒ answer 1
Step-by-step explanation:
* Lets explain how to find the inverse of a function
- To find the inverse of a function :
# Write y = f(x)
# Switch the x and y
# Solve to find the new y
# The new y is
* Lets solve the problem
∵ f(x) = 2x + 1
- Put y = f(x)
∴ y = 2x + 1
- Switch x and y
∴ x = 2y + 1
- Solve to find the new y
∵ x = 2y + 1
- Subtract 1 from both sides
∴ x - 1 = 2y
- Divide both sides by 2
∴ (x - 1)/2 = y
- Divide each term in the left hand side by 2
∴ y = 1/2 x - 1/2
- Replace y by
∴
* The inverse of the function is