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Published byHector Anderson Modified over 9 years ago

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5.3 Slope-intercept form Identify slope and y-intercept of the graph & graph an equation in slope-intercept form. day 1

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**Find the y-intercept: Linear equation:**

An equation that models a linear function. 1. The y-coordinate of a point where the graph crosses the y-axis where x= 0 y-intercept: Find the y-intercept: y-intercept: (0,2) or 2 y-intercept: (0, -3) or -3 y-intercept: (0,0) or 0

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**y = mx + b y = 5 y = -2x + 3 y = 6x y = 0x + 5**

Slope-intercept form of a linear equation: y = mx + b slope y-intercept Identify the slope and y-intercept. y = 5 y = -2x + 3 y = 6x y = mx + b y = mx + b y =6x+ 0 y = 0x + 5 6 m = y-int = m = y-int = -2 m = y-int = 5 3

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**y = 2x - 3 y = mx + b y = mx + b 𝑦= 2 3 x + 7 m = 2 m = 2 3 y-int = -3**

Write an equation in slope-intercept form given the slope (m) and y-intercept (b). m = 2 y-int = -3 m = 2 3 y-int = 7 y = mx + b y = mx + b y = 2x - 3 𝑦= x + 7

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**y = mx + b 1 y = mx + b 𝑦= 3 4 x + 1 2. Identify: m = b =**

Write an equation given the graph of a line. y = mx + b 1. Find 2 points on the line 2. Identify: m = b = 3 4 1 y = mx + b 𝑦= x

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**y = mx + b -1 y = mx + b 𝑦= −2x - 1 2. identify: m = b =**

Write an equation given the graph of a line. y = mx + b 1. Find 2 points on the line 2. identify: m = b = −2 1 = -2 -1 y = mx + b 𝑦= −2x - 1

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**Assignment: page 312: 7-21 all, 63-66, and 74-77**

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