Question

# Given equation: 300y=500x+1900 where 'x' = time (hours)and 'y' = Intensity (in cd) For plotting the graph of the equation, fill the table with the correct value of p and q obtained from the graph.

A
p=8 and q=5
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B
p=8 and q=13
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C
p= 8 and q= 5
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D
p=3 and q=8
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Solution

## The correct option is B p=8 and q=13Given equation: 300y=500x+1900 Put the given value of x from the table in the respective equation and find the corresponding unknown values. If you put x=1,then the value of y from the equation is: ⇒300y=500×1+1900 ⇒300y=500+1900=2400 ⇒y=2400300=8 So, value of p will be 8. ∴ (1,8) will be a point on the straight line in the graph. Similarly if you put x=4,then the value of y from the equation is: ⇒300y=500×4+1900=2000+1900 ⇒y=3900300=13 So, value of q will be 13. ∴ (4,13) will be a point on the straight line in the graph. The plotting of the graph is shown as: ∴ The table can be filled as: x14y813

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