Depends greatly on the type of function.
Some things to keep in mind:
1.) the value of the denominator of a fraction cannot be zero
2.) the inside of an even root cannot be less than zero
3. The argument of a logarithmic function must be greater than zero
4. Plus many more other rules and such
But a simpler explanation, just find out what values x can be for the given function, and what y can be.
The x values make up the domain, the y, the range
Graphs are helpful
Hope this helps!
<h2>Problem:</h2>
Choose all the expressions that are equal to 5/9×8.
A. 9÷5×8
B. 8/9×5
C. 5÷8×9
D. 5×1/9×8
E. 5×8
<h2>Solution:</h2>
<h2>Answer:</h2>
<u>B</u><u> </u><u>a</u><u>n</u><u>d</u><u> </u><u>D</u>
<h2>=============================</h2>
Hope it helps
<h2>=============================</h2>
Test the choices !
Pick an even number, and see what each choice does to it.
Let's start with, say, 6 .
We'll try each choice, and see which one produces an odd number:
a). 6 to the 2nd power. . . . . . 6 x 6 = 36. That's not an odd number.
b). 6 + 3 = 9 This could be it. 9 is odd. We'll save this one.
c). 3·6 = 18. That's not an odd number.
d). 6/3 = 2. That's not an odd number.
The only one that gave us an odd number is (b).
Answer: Rs 25,000
Step-by-step explanation:
Given
Retailer sold an electric iron to a customer at a loss of 10%
Suppose the Cost price of iron is 
So, selling price is 
This price must be equal to 
+ VAT
Thus, the cost price is 
