Examlex
Evaluate or simplify the expression without using a calculator.
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Q15: <span class="ql-formula" data-value="f(x)=\left\{\begin{array}{ll}-\frac{1}{2} x & \text {
Q26: <span class="ql-formula" data-value="f ( x ) =
Q28: <span class="ql-formula" data-value="f ( x ) =
Q30: <span class="ql-formula" data-value="f ( x ) =
Q51: Steve invests in a circus production. The
Q52: <span class="ql-formula" data-value="\begin{array} { l } y
Q91: <span class="ql-formula" data-value="\begin{array} { l } 5
Q139: y = 3x - 1 <img src="https://d2lvgg3v3hfg70.cloudfront.net/TB7043/.jpg"
Q149: Three trains - one eastbound, one westbound,
Q150: <span class="ql-formula" data-value="f ( x ) =