Only 25 and 28 are functions.
A function must have only one y value per x value. For 26, the y value of 0 and multiple others have two different y values. For 27, all x values less than 0 have multiple y values.
4y - 20.......u need to find a common factor that can go into 4y and 20.....the only common factor is 4. So u can factor that out.....4 goes into 4 one time (but do not forget the y) and 4 goes into 20 five times....4(y - 5)
4(y - 5)...u can also check ur answer by distributing the 4 through the parenthesis and getting 4 * y - 4 * 5 = 4y - 20
Answer: C
Explanation: it’s the longest one
The dot plot below shows the number of books 26 students read in a month:
<span>Is the median or the mean a better center for this data and why? help plz
</span>
Hi,

There are no other simple steps to reduce the square root of one hundred and sixty-three.
The actual square root value is ≈12.767145334803704
But we have taken only significant figures and it is as 12.76.
Hope it helps! :)