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Solving for y

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Solving for y

1. 1. Algebra 1 Solving for y & Identify Slope & Intercept Day 12 Objective: 3.03, 4.01
2. 2. Examples <ul><li>1) 2x + 5y = 8 </li></ul><ul><li>2) 2x = 8 + y </li></ul>
3. 3. Examples <ul><li>3) -3x + 2y = 4 </li></ul><ul><li>4) 5x – y = 8 </li></ul>
4. 4. Examples <ul><li>5) 6) </li></ul>
5. 5. Vocabulary <ul><li>Slope-Intercept Form: y = mx + b </li></ul><ul><li>m – slope b – y-intercept </li></ul>
6. 6. Examples <ul><li>Find the slope and y-intercept of each equation. </li></ul><ul><li>7) y = -2x + 1 10) y = ½ x – 5 </li></ul><ul><li>8) y = ⅝x 11) y = 5 </li></ul><ul><li>9) 2x + 3y = 7 12) -3x – 2y = 14 </li></ul>
7. 7. Examples <ul><li>Write an equation in slope-intercept form. </li></ul><ul><li>13) m = 3, b = 4 15) m = -2, b = 8 </li></ul><ul><li>14) m = 0, b = -3 16) m = undefined, b = 4 </li></ul>
8. 8. Examples <ul><li>Write the equation of the line. </li></ul><ul><li>17) 18) </li></ul>
9. 9. Assignment Worksheet