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# Qwizdom straight lines

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An interactive maths lesson designed for use with Qwizdom Interactive Voting Systems

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### Qwizdom straight lines

1. 1. MATHS: STRAIGHT LINES AN INTERACTIVE QWIZDOM LESSON
2. 2. Y = 3x + 5 <ul><li>Gradient = </li></ul>
3. 3. Y = 4x -5 <ul><li>Gradient = </li></ul>
4. 4. Y = -3x + 10 <ul><li>Gradient = </li></ul>
5. 5. Y = 5x + 6 <ul><li>Y intercept = </li></ul>
6. 6. Y = 5x -7 <ul><li>Y intercept = </li></ul>
7. 7. Y = ½x + 5 <ul><li>Gradient = </li></ul>
8. 8. Gradient of -2 <ul><li>Y = 2x + 5 </li></ul><ul><li>Y = -2x + 7 </li></ul><ul><li>Y = 3x -5 </li></ul><ul><li>Y = 10x +5 </li></ul>
9. 9. Crosses y-axis at 5 <ul><li>Y = 2x -3 </li></ul><ul><li>Y = 4x +3 </li></ul><ul><li>Y = 5x -5 </li></ul><ul><li>Y = x +5 </li></ul>
10. 10. True or False <ul><li>The line y = 3x -2 has a positive gradient </li></ul>
11. 11. True or False <ul><li>The line y = -2x + 4 crosses </li></ul><ul><li>the y-axis at (0,4) </li></ul>
12. 12. Gradient of y= -4x
13. 13. Gradient of y = 5
14. 14. Y = -3x + 8 <ul><li>Gradient of line parallel to </li></ul>
15. 15. Y = -3x + 8 <ul><li>Gradient of line perpendicular to </li></ul><ul><li>(write as a fraction) </li></ul>
16. 16. Y = ½x + 3 <ul><li>Gradient of line parallel to </li></ul>
17. 17. Y = ½x + 3 <ul><li>Gradient of line perpendicular to </li></ul>