She is right. Monique is right
-4 1/4 - (-9 1/2).....distribute the negative thru the parenthesis
-4 1/4 + 9 1/2 .....turn to improper fractions
- 17/4 + 19/2...common denominator is 4
-17/4 + 38/4 ....when ur dealing with 2 different signs, u subtract and take the sign of the largest number
-17/4 + 38/4 = 21/4...turn to mixed number = 5 1/4
OR
once u get to -4 1/4 + 9 1/2...turn to decimals
-4 1/4 = -4.25
9 1/2 = 9.5
-4.25 + 9.5 = 5.25 which equals 5 1/4
A function will not have any repeating x values. They can have repeating y values, just not the x ones. So u need to find the set of points that has all different x values...and that is ur function.
{(0,1), (-2,8), (5,19), (2,8)}....this has no repeating x values and is therefore, a function
To solve this, we first ask: How many wholes of 6 are there in 19?
19 divided by 6 is 3
Then we ask: How many sixths are there left over?
We have 1/6 left over
The mixed number is 3 1/6
Three wholes and one sixth.