Grade 8
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The diagram shows several lines. You can only see part of the lines, but they actually continue forever in both directions.
Lines j, h, g, f, e graphed on grid. j is green with a negative slope, h is yellow and parallel to f which is black, h is 6 unit up from f. e is red and parallel to f and h. e is 2 unit below f. g is blue and has a more steep positive slope than h, f, and e.
Diego earns $10 per hour babysitting. He has no money saved before he starts babysitting and plans to save all of his earnings. Graph how much money,
During an early winter storm, snow falls at a rate of
The time since the beginning of the storm and the depth of the snow is a linear relationship. This is also a proportional relationship since the depth of snow is 0 inches at the beginning of the storm.
Graph of line. Horizontal axis, time since beginning of storm in hours, scale 0 to 6, by 1’s. Vertical axis, depth of snow in inches, scale 0 to 9, by 1’s. Points on line include 0 comma 0, 2 comma 1 and 4 comma 2.
During a mid-winter storm, snow again falls at a rate of
The rate of change,
The 5 inches of snow that were already on the ground can be graphed by translating the graph of the first storm up 5 inches, resulting in a vertical intercept at
This second storm is also a linear relationship, but unlike the first storm, is not a proportional relationship since its graph has a vertical intercept of 5.