249. Let P(x, y) and Q = (1, 5). Write an equation that states that the...

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249. Let P(x, y) and Q = (1, 5). Write an equation that states that the slope of line PQ is 3. Show how this slope equation can be rewritten in the form y - 5 = 3(x-1). This linear equation is said to be in point-slope form. Explain the terminology. Find coordinates for three different points P that fit this equation. 249. Let P(x, y) and Q = (1, 5). Write an equation that states that the slope of line PQ is 3. Show how this slope equation can be rewritten in the form y - 5 = 3(x-1). This linear equation is said to be in point-slope form. Explain the terminology. Find coordinates for three different points P that fit this equation.