1) Ask 20 friends or classmates for their height and weight. For each person, mark the ordered pair (h, w) on a graph. What does the resulting graph or scatterplot look like?

2) Ask 20 friends how tall they are and how many servings of fresh fruit they eat every week.

Plot (h,c). What does the scatterplot look like?

3) Draw the following lines on a piece of graph paper. First put in the x and y axes and at their intersection mark (0,0). For each equation draw the line by graphing a few points, picking a value for x and then computing the corresponding y.

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a) y = 3 + 2x b) y = -4+x c) y = -5x