Math - Gradient and Intercept

In this lecture, we learnt about Cartesian coordinates and used points on our line to work out the gradient of our lines.

We also looked at the intercept points, where our line crosses the x- and y- axes.

For your challenge, you need to;

  • Draw the line for currentFuel/time, where the maxFuel = 150 and burnRate = 2
  • Find the the x- and y- intercept points
  • label 4 co-ordinates on your graph
  • work out the gradient of the line

How did you get on?

Every second the rocket looses -2, for a max of 75 seconds.

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So I found that for maxFuel = 150 and burnRate = 2, the tank lasts 75 seconds.
The slope is of -2.
And I have this coordinates: (5,140). (25,100). (50,50). (60,30).

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Points = (0,150) (30, 90) (45, 60) (75, 0)
x intercept = 75
y intercept = 150
slope = -2

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