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Thanks....mals24 wrote:Find the equation of PQ
y = mx+c
c = 30
m = -3/5 (rise/run, and since its a downward sloping line slope is negative)
y = -(3/5)x + 30
For both the coordinates to be integers, x has to be a multiple of 5.
So the possible values of x = 0,5,10,15,20,25,30,35,40,45,50 = 11 values
Answer is D
WOW! I am as good as Mals24 ismals24 wrote:Find the equation of PQ
y = mx+c
c = 30
m = -3/5 (rise/run, and since its a downward sloping line slope is negative)
y = -(3/5)x + 30
For both the coordinates to be integers, x has to be a multiple of 5.
So the possible values of x = 0,5,10,15,20,25,30,35,40,45,50 = 11 values
Answer is D
