Hello!
Let's solve this equation for y first.
-10x+y=4
Add 10x to both side.
y=10x+4
Now, let's plug in our x-values to find y.
x: -2, -1, 0, 1, 2
y:-16,-6, 4,14,24
I hope this helps!
Answer:
{x| x is a real number}
Step-by-step explanation:
f(x) is defined for all values of x, so the domain is ...
{x| x is a real number}
Given:
The different relations in the options.
To find:
The relation which represents a function.
Solution:
A relation is called a function if there exist a unique output (y-value) for each input (x-value).
In option A, there exist two outputs y=7 and y=1 for a single input x=-1. So, this is not a function.
In option B, there exist two outputs y=-5 and y=2 for a single input x=-1. So, this is not a function.
In option C, there exist two outputs y=2 and y=4 for a single input x=3. So, this is not a function.
In option D, there exist only one value of y for each x. So, this is a function.
Therefore, the correct option is D.
Answer:
Option A
Step-by-step explanation:
According to the second law of thermodynamics, heat always flows from hot to cold places, unless work is done on the system. In this case the ice is colder than room temperature, and therefore the heat flows from the soda to the ice cube. The ice cube absorbs the heat, and partially melts.
