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Unformatted text preview: y-form. 1. 2. y = 2 x + 1 (already in y-form) 3. As shown in the graphs of the three problems in Figure 8, the lines cross the y-axis at 3, +1, and 2, the last term in each equation. If a linear equation is written in the form of y = mx + b, b is the y-intercept. The slope of a line is defined as and the word change refers to the difference in the value of y (or x ) between two points on the line. Note: Points A and B can be any two points on a line; there will be no difference in the slope....
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