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Home Q & A Board Science-Related Homework Help Mathematics
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tacha00 tacha00
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10 years ago
Each question number shows one graph with one red line and one blue line. Here are the instructions: See attached.
 
(i)    Write the equation of both lines shown in the graph and show your work for determining this.
(ii)    Solve the system algebraically and show your work.
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#1
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10 years ago
12.

Blue is y = 6 (because it's a straight line)

Red:

y = -4x + b

Set x = 1, y = 14

14 = -4(1) + b

14 + 4 = 18 => b

Therefore, y = -4x + 18
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