The y-intercept is where the line crosses the y-axis
In this case the line crosses y-axis at (0,3)
Hope this helps :)
Find percent -> 2nd month.
4264*.25==1066 phone calls+=4264
==5330 for 2nd month.
for 2nd -> 3rd
6396==5330*x, solve algebraically to get .20 == 20% increase from 2nd month to 3rd month.
THIS IS A PROPORTION QUESTION.
45 x CROSS MULTIPLY.
__ = ____
6 26
45*26=1170
6*x=6x
1170=6x DIVIDE 6 ON BOTH SIDES
_________
195=x
THE OFFICIAL ANSWER IS 195 OUNCES OF LEMONADE WOULD BE NEEDED TO SERVE 26 PEOPLE. HOPE THIS HELPS!!!!!!!!!! :)