Question

y = 9x

y = 8x + 4

answer attempt 1 out of 2

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Explanation:

Step1: Set the two equations equal

Since \(y = 9x\) and \(y=8x + 4\), we can set \(9x=8x + 4\).

Step2: Solve for \(x\)

Subtract \(8x\) from both sides of the equation \(9x=8x + 4\).
\(9x-8x=8x + 4-8x\), which gives \(x = 4\).

Step3: Solve for \(y\)

Substitute \(x = 4\) into \(y = 9x\). Then \(y=9\times4=36\).

Answer:

\((4,36)\)