Question
The graph shows the relationship between the number of pages printed by a printer and the warm up time before each printing. What function in the form Y = mx + b represents this relationship?
Hint:
Use two – point form
The correct answer is: y = (0.1)x + 1
No of pages printed = x
Time taken = y
In the graph given, when x1 = 0 , y1 = 1
And x2 = 10 , y2 = 2
Using two – point form, equation of the line is
(y – y1) = m (x – x1) where m = 
m = 
= 
= 0.1
Now, equation of the line is (y – y1) = m (x – x1)
(y – 1) = 0.1 (x – 0)
y – 1 = 0.1x
y = (0.1)x + 1
A linear function that represents the relationship between the number of pages printed by a printer and the warm up time before each printing is y = (0.1)x + 1.
m = = 0.1Now, equation of the line is (y – y1) = m (x – x1)
(y – 1) = 0.1 (x – 0)
y – 1 = 0.1x
y = (0.1)x + 1
A linear function that represents the relationship between the number of pages printed by a printer and the warm up time before each printing is y = (0.1)x + 1.
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Tips to help you answer the questions on the problems of age: a.) The age after n years will be (x+n) if you assume that the current age is x.
b.) The age before n years will be (x-n) if you assume the present age to be x.
c.) If the age is expressed as a ratio, p:q, the age will be rounded to the nearest multiple of q and p.
d.) Given that you are assuming you are currently x years old, n times that number equals (xn) years.
E.g.:The father is three times older than Ronit. So he would be 2.5 times Ronit's age after '8' years. How many more times would he be Ronit's age after another '8' years?
A. 2 times
B. 2 1/2 times
C. 2 3/4 times
D. 3 times
Richard and teo have a combined age of 31 . Richard is 4 years older than twice teo's age. How old are Richard and teo?
Tips to help you answer the questions on the problems of age: a.) The age after n years will be (x+n) if you assume that the current age is x.
b.) The age before n years will be (x-n) if you assume the present age to be x.
c.) If the age is expressed as a ratio, p:q, the age will be rounded to the nearest multiple of q and p.
d.) Given that you are assuming you are currently x years old, n times that number equals (xn) years.
E.g.:The father is three times older than Ronit. So he would be 2.5 times Ronit's age after '8' years. How many more times would he be Ronit's age after another '8' years?
A. 2 times
B. 2 1/2 times
C. 2 3/4 times
D. 3 times
