2-2 Linear Equations Obj: identify linear equations/functions Write linear equations in standard form.

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Presentation transcript:

2-2 Linear Equations Obj: identify linear equations/functions Write linear equations in standard form.

What is a linear function? Linear 5x – 3y = 7 x = 9 6s = -3t – 15 y = ½ x Not linear Take a minute to describe the main differences you notice

Linear function: f(x) = mx + b State whether the following functions are linear: 1.g(x) = 2x – t(x) = 4 + 7x

Standard Form where A, B, and C are integers A, A and B are not both Write the following linear equations in standard form: a.y = 3x – 9 b.- ½ x = 3y -1 c.8x – 6y +4 =0

X and Y intercepts  X-intercept is when y = 0 Find the x-intercept of -2x +y – 4 = 0  Y-intercept is when x = 0 Find the x-intercept of -2x +y – 4 =0

Graph linear equations using intercepts -2x +y – 4 =0 1)Plot the x- and y-intercepts on the coordinate plane. 2) Connect your points and extend in both directions using arrows.