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Mkey [24]
3 years ago
12

Find tge equation of the line

Mathematics
1 answer:
frozen [14]3 years ago
3 0

Answer:

y = -2x + 9 or y = 9 - 2x

Step-by-step explanation:

First find the gradient

  • Pick two points on the graph, (4, 1) and (1,7)
  • Find the change in y (7 - 1 = 6)
  • Find the change in x (1 - 4 = -3)
  • Divide the change in y by the change in x = 6 ÷ -3 = -2
  • The gradient is -2: y = -2x + c

Next, look at where the line intercepts (goes through) the y-axis: 9

The equation of the line is y = -2x + 9

<em>Tip: </em><em>The gradient is negative because the line is going downwards from left to right; if the line was going upwards, the gradient would be positive.</em>

Hope this helps!

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Answer:

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