Answer:
f(x) = -5/9 x + 5 1/9
Step-by-step explanation:
f(2)=4 and f(−7)=9 means the line pass through (2,4) and (- 7,9)
f(x) = mx + b
m = (y-y') / (x-x') = (9 - 4) / (- 7 - 2) = - 5/9
for (2,4) : b = f(x) - mx = y - mx = 4 - (- 5/9) x 2 = 4 + 10/9 = 46/9 = 5 1/9
f(x) = -5/9 x + 5 1/9
check for (-7, 9) f(-7) = (-5/9) * (-7) + 5 1/9 = 35/9 + 46/9 = 81/9 = 9
9=n+3
Subtract 3 on each side
n=6
Answer:
An adults ticket costs $9
Step-by-step explanation:
Kids:
$7
Adults:
$9
So if you add 7+7+7= 21 (kids)
then do 9+9=18(adults)
Then add them together you get 39$
The inverse function will be g(x) = (x + 3) / 5. Then the value of the function f(5) and g(3) will be 22 and 6/5.
<h3>What is
inverse of a function?</h3>
Let the function will be
f: X → Y
Then the inverse function will be
f⁻¹: Y → X
The function is given below.
f(x) = 5x – 3
Then the value of the function f(x) at x = 5, will be
f(5) = 5 × 5 – 3
f(5) = 22
The g(x) is the inverse function of f(x).
Then the function g(x) will be
5g(x) – 3 = x
g(x) = (x + 3) / 5
Then the value of function g(x) at x = 3, will be
g(3) = (3 + 3) / 5
g(3) = 6 / 5
The complete question is given below.
The function f(x) = 5x – 3. And the function g(x) is the inverse of f(x). Find the value of the function f(5) and g(3).
Learn more about inverse function here:
brainly.com/question/19425567
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