Find f-1(x) if f(x) = 2x/3-4

Given:

The function is:

To find:

The inverse of the given function, i.e., .

Solution:

We have,

Step 1: Substitute .

Step 2: Interchange x and y.

Step 3: Isolate y.

Step 4: Substitute .

Therefore, the inverse of the given function is .

x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x

step-by-step explanation:

last month maria hiked the 5-mile mountain trail a number of times and she hiked the 10-mile canal trail several times. let x represent the number of times she hiked the 5-mile trail, and let y represent the number of times she hiked the 10-mile trail. if she hiked a total of 90 miles, which equation can be used to find the number of times maria hiked each trail? x + y = 90 5x – 10y = 90 90 – 10y = 5x 90 + 10y = 5x