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LiveBinder Project Made

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Slope-intercept form

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LiveBinder Project Made

  1. 1. THE COST OF A PIZZA VARIES DIRECTLY AS THE SQUARE OF ITS RADIUS. IF A PIZZA WITH A 6 INCH RADIUS COSTS $8.00, HOW MUCH SHOULD A PIZZA WITH AN 11 INCH RADIUS COST?
  2. 2. SLOPE-INTERCEPT FORM • THE SLOPE-INTERCEPT FORM OF A LINE IS THE MOST COMMON FORM OF A LINE • DESCRIBES A LINE AND ALL OF THE POINTS CONTAINING THAT LINE • ALLOWS YOU TO QUICKLY IDENTIFY THE SLOPE AND THE Y-INTERCEPT • SLOPE-INTERCEPT FORM: 𝑦 = 𝑚𝑥 + 𝑏
  3. 3. WHICH OF THE FOLLOWING ARE WRITTEN IN SLOPE-INTERCEPT FORM? • 𝑦 = 2 3 𝑥 + 6 •3𝑥 + 7𝑦 = 4 • 𝑦 = 3𝑥 − 8 •3𝑦 = −7𝑥 + 12
  4. 4. WRITE AN EQUATION IN SLOPE-INTERCEPT FORM GIVEN TWO POINTS. •FIND THE EQUATION OF THE LINE THAT PASSES THROUGH (-1,4) AND (1, -2)
  5. 5. ON YOUR OWN •FIND THE EQUATION OF THE LINE THAT PASSES THROUGH (5, -3) AND (-4, 3).
  6. 6. WRITE THE EQUATION IN SLOPE-INTERCEPT FORM. •9𝑦 − 6𝑦 = −9𝑥 + (−6)
  7. 7. ON YOUR OWN •WRITE THE EQUATION IN SLOPE-INTERCEPT FORM: 7𝑥 − −6 𝑥 = −2𝑦 + 4
  8. 8. GRAPH THE LINE • 𝑦 = 5𝑥 − 1 USE THE FOLLOWING STEPS: 1. EQUATION IS IN SLOPE-INTERCEPT FORM 2.IDENTIFY Y-INTERCEPT 3.IDENTIFY SLOPE 4.PLOT NEXT TWO POINTS
  9. 9. ON YOUR OWN • 𝑦 = − 3 2 𝑥 + 3

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