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Algebra

Algebra. 3-1. Linear Equation. Forms a line when graphed Can be put into standard form: Ax+By =C Ex. 3x+2y=5 Ex. 1. Intercepts. X intercept is point where graph crosses the x axis and y=0 Y intercept is point where graph crosses the y axis and x=0 Real world examples a and b.

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Algebra

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  1. Algebra 3-1

  2. Linear Equation • Forms a line when graphed • Can be put into standard form: Ax+By=C Ex. 3x+2y=5 Ex. 1

  3. Intercepts • X intercept is point where graph crosses the x axis and y=0 • Y intercept is point where graph crosses the y axis and x=0 • Real world examples a and b

  4. Graph by using intercepts • Find x intercept by plugging in zero for y • Find y intercept by plugging in zero for x • Graph using the two points • Ex. 4

  5. Exceptions • Some graphs will be missing one of the intercepts • Horizontal line • Vertical line

  6. Graph by making a table • Plugging in points to make the graph (choose x values and use equation to determine y values) • Ex. 5

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