Proportional: y=-12x, , Hint: the y-intercept is 0!, , y=.75x, Ricardo is saving $45 every month. , , The amount of turkey eaten varies directly with time in hours on Thanksgiving., Non-proportional: , y=2x+1, , y=.2x - 4, Johnny saves $25 each week and he already has $65 in a savings account., , Eric is on the football field. He starts at the 10 yard line and then runs 2 yards per second. ,

Proportional vs Non-proportional

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