Question

For each of the following, determine whether the equation defines y as a function of x. 8x + \|y\| = 0 Function Not a function (y + 3)^2 - 25 = x Function Not a function x = \frac{y^2}{7} Function Not a function y = 9\|x\| - 1 Function Not a function

          For each of the following, determine whether the equation defines y as a function of x.
8x + \|y\| = 0
Function
Not a function
(y + 3)^2 - 25 = x
Function
Not a function
x = \frac{y^2}{7}
Function
Not a function
y = 9\|x\| - 1
Function
Not a function

For each of the following, determine whether the equation defines y as a function of x.
8x + y = 0
Function
Not a function
(y + 3)^2 - 25 = x
Function
Not a function
x = (y^2)/(7)
Function
Not a function
y = 9x - 1
Function
Not a function

Added by Daniel P.

Elementary and Intermediate Algebra

Alan S. Tussy, R. David Gustafson 5th Edition

Instant Answer

Solved by Expert Craig West

Step 1

8x = 0 This equation can be rewritten as x = 0/8, which simplifies to x = 0. Since there is only one value of x for every value of y (which is always 0), this is a function. Show more…

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Can someone please tell me if this is a function or not? I'll give a thumbs up! For each of the following, determine whether the equation defines y as a function of x. 1. 8x = 0 Function: Not a function 2. 3 - 25 = x Function: Not a function 3. 27 = 7 Function: Not a function 4. 1 - 1/x Function: Not a function 5. x