Answer:
-4 ≤ y ≤ 8
Step-by-step explanation:
The range is the set of y-values for which the function is defined. When we are asked to find the range of a function (given in a graphical form), we look from which y-value (lowest) till which y-value (highest) the function is graphed for (defined for).
First, looking at the y-axis, we see that 5 bars in the coordinates is 10 units, so each bar is :
10/5 = 2 units
Now, looking at the lowest value, we see that it is 2 units from y = 0, so that is at:
y = -2 * 2 = -4
Now, looking at the highest value, we see that it is 4 units from y = 0, so that is at:
y = 4 * 2 = 8
So, the range is from y = -4 to y = 8. This can be written as:
-4 ≤ y ≤ 8
The answer is -32 I think
Answer: The the expression for the number of letters = 
Maria sent 12 postcards
Step-by-step explanation:
Given : Cost of mail a postcard =20 cents
Cost of mail a letter = 33 cents
Since 1 dollar = 100 cents
Total money spent by Maria = 
Let x represent the number of postcards she wrote.
The the expression for the number of letters =
According to the question we have ,
Hence, Maria sent 12 postcards and 6 letters .
222/1000 you can go on an on and on
