4 years ago

If f(x)=3x+9,what is f−1(x)?

1 answer:

8 0

F inverse? then :
let's consider 3x + 9 as y.
so :
y = 3x + 9
y - 9 = 3x
x = y/3 - 3
now replace y with x and you get the inverse.
f^-1 (x) = x/3 - 3

You might be interested in

MATH: GRAPHS AND FUNCTIONS 3. HELP! 12 PTS (HARD)

JulijaS [17]

Answer:

Step-by-step explanation:

4 0

2 years ago

At a diner, Hailey's lunch cost $6.75. Her sister's lunch cost $5.95. After lunch they each had a frozen yogurt that cost the sa

aivan3 [116]

Answer:

Each cost 2.50$

Step-by-step explanation:

6.75+5.95=12.7

17.40-12.7=5

5÷2= 2.5

Each cost 2.50$

8 0

3 years ago

Read 2 more answers

hey guys pls help me i need to submit this before 1hr .graphing an inverse function.y = 4x + 12 using the x values (-2,-1, 0, 1

Andrew [12]

Answer:

4, 8, 12, 16, 24

Step-by-step explanation:

Replace the x with the x values starting at -2 and use the equation with the new x value.

E.g.

x = -2

y = 4 * -2 + 12

y = 4

Sorry if my explanation isn't the best.

3 0

3 years ago

True or false

Delicious77 [7]

Answer:

true

Step-by-step explanation:

3 0

3 years ago

Draw a rate table for $7.50 per hour pay rate. Include 1-4,10,40 in your table. Also include (0, for hours too). ?What do you no

vladimir1956 [14]

Answer:

0=0

1=$7.50

2=$15

3=$22.50

4=$30

5=$37.50

10=$75

40=$300

Step-by-step explanation:

8 0

3 years ago

If f(x)=3x+9,﻿what ﻿is f−1(x)?

If f(x)=3x+9,what is f−1(x)?