Function 1: An exponential decay function that has been shifted right 4 units and then reflected over the a-axis. Function 2: An exponential decay function that has been reflected across the y-axis and then shifted up 2 units. In which function does y increase as x increases? only Function 1 only Function 2 both Function 1 and 2 neither Function 1 or 2 ©2021 Illuminate Education TM, Inc.

The average water level in a retention pond is 6.8 ft. During a time of drought, the water level decreases at a rate of 3 in./day. a. Write a linear function W that represents the water level W(f) (in ft) t days after a drought begins. b. Evaluate W(20) and interpret the meaning in the context of this problem.

Determine whether the equation defines y as a function of x : x + y = 16

what is the range and domain of y = 3x?

Write each of the following functions in a piecewise format and sketch its graph. For each function, find the value(s) of x where one piece ends and another begins

Graph the functions

Graph the functions

3. Determine the domain and range of the function y = 2c0sx

Graph the function y = √| x | .

The thickness of ice y in the Gladstone Glacier was 450 feet in 1990. By 2005, the thickness had shrunk to 400 feet. Let x be the elapsed number of years since 1990. Write a linear function that models this data. Then use the function to find the given value. (Simplify your answer and round to TWO decimal places, including zeros as needed. Example: 2 should be written as 2.00. Do not include commas.) Estimate the year when the Gladstone Glacier will be 350 feet thick. (Round your answer to TWO decimal places, including zeros as needed. Example: 2 should be written as 2.00. Do not include commas.)