Finding equation of line given the gradient and the \(y\)-intercept

Finding equation of line given the gradient and the \(y\)-intercept

Secondary 3

A line has gradient of \(-3\) and passes through the point \(\left( 0,-7 \right)\).

  1. Write down the equation of the line.
  2. Given that the line also passes through the point \(\left( \frac{h}{3},\,4h \right)\).
    Find the value of \(h\).

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Answer:(i) \(y = -3x - 7\) (ii) \(h = -1\frac{2}{5}\)

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