In surveying families with pets, 5 out of 7 families owned a dog. If 35 families had dogs, how many families were surveyed?
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slope is -1
we have a point as (-4,3)
we can use slope intercept form of line
we can plug m=-1
now, we can plug point (-4,3)
x=-4 and y=3 and then we can find b
now, we can plug back
and we get
............Answer