Answer:
1) distributive property
2) subtraction property of equality
3) division property of equality
Step-by-step explanation:
Given : If , then x=8
To complete the proof :
Solution :
Following are the complete steps or proof of solving the given expression,
is given
- distributive property
- subtraction property of equality
- division property of equality
Answer:
<em>The domain of f is (-∞,4)</em>
Step-by-step explanation:
<u>Domain of a Function</u>
The domain of a function f is the set of all the values that the input variable can take so the function exists.
We are given the function
It's a rational function which denominator cannot be 0. In the denominator, there is a square root whose radicand cannot be negative, that is, 4-x must be positive or zero, but the previous restriction takes out 0 from the domain, thus:
4 - x > 0
Subtracting 4:
- x > -4
Multiplying by -1 and swapping the inequality sign:
x < 4
Thus the domain of f is (-∞,4)
