Y = -3x + 6....the slope here is -3. A parallel line will have the same slope.
y = mx + b slope(m) = -3 (-4,7)....x = -4 and y = 7 now we sub into the formula and find b, the y int 7 = -3(-4) + b 7 = 12 + b 7 - 12 = b -5 = b so ur parallel equation is : y = -3x - 5 <==
As the ratio of your shadow to your height is 2:1 assuming the flagpole would form a similar triangle the shadow is twice the height of the pole meaning the pole is 14 feet tall
