If the graphs of 3x – 5y = –8 and 3x + 5y = 32 intersect at the poi

| If the graphs of 3x – 5y = –8 and 3x + 5y = 32 intersect at the point (p, q), then the value of (p – q) is

A. 3

B. 2

C. 1

D. 0

Right Answer is: D

SOLUTION

3x – 5y = –8 and 3x + 5y = 32 represents the equations of two straight lines, the point where the lines intersect each other can be calculated by solving the given equations. Let we add both equations:

x = 4,
Hence 12+5y = 32 5y = 20 y = 4
Hence (p, q) = (4, 4)
Now (p – q) = 4 – 4 =0

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