A straight line has gradient -1.5 and passes through (20, 50). The graph uses a false origin, so the y-intercept is found by calculation. It is:

  1. 2.5
  2. 20
  3. 80
  4. 50
Answer

C) 80

c = y - mx = 50 - (-1.5)(20) = 80. SLO P-11-N-20 · Understanding

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