y=the negative square root of 2x
..then?
The equation y = -√2x represents a function that gives the negative square root of twice the value of x. To understand how to find the answer for a specific x value, you can follow these steps:
1. Replace x with the desired value in the equation. Let's say we want to find the value of y when x = 4.
y = -√2(4)
2. Simplify the expression inside the square root.
y = -√8
Note: √8 can be simplified further as 2√2 since 2 is a perfect square.
3. Continue simplifying the expression.
y = -2√2
So, when x = 4, the value of y is -2√2.