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gogolik [260]
3 years ago
15

Pls. Help me answer #3.

Mathematics
2 answers:
Akimi4 [234]3 years ago
7 0
The answer is y=1/2x
Gwar [14]3 years ago
4 0

Answer:

First find the gradient (m).

  • Pick any two points on x axis and their corresponding points on y axis in this format (x,y).
  • point 1 (10,5) and point 2 (20,10)
  • Gradient = (y2-y1) /(x2-x1)
  • = (10-5)/(20-10)
  • =5/10
  • Gradient (m)=1/2

Now that you know gradient, solve using either of the points you picked as shown below: Note pick a third in letters not numbers example point 3 (x,y)

  • Lets use point 1 (10,5) and point 3 (x,y).
  • Gradient = (y-5)/(x-10) : Note we already know gradient is 1/2
  • so, 1/2 = (y-5) / (x-10)
  • Rearranging and simplifying: y-5 = (1/2)(x-10)
  • y-5=(1/2 x) - 5
  • Add 5 to both sides
  • y-5+5=(1/2x)-5+5
  • y=1/2x+0

Final answer y=1/2x or y=0.5x

Step-by-step explanation:


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