Finding Values Using a Linear Function

Finding Values Using a Linear Function

Secondary 1

The equation of a function is \(y=\frac{1}{4}x-\frac{5}{2}\) . Find

  1. the value of \(y\) when
    1. \(x=-5\)
    2. \(x=1\frac{2}{3}\)
  2. the value of \(x\) when
    1. \(y=-\frac{1}{7}\)
    2. \(y=\frac{2}{3}\)

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Answer:(a)(i) \(-3\frac{3}{4}\) (a)(ii) \(-2\frac{1}{12}\) (b)(i) \(9\frac{3}{7}\) (b)(ii) \(12\frac{2}{3}\)

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