Create equations in two or more variables, graph them, and interpret relationships with labels and scales.
Interpret a graph feature using input, output, units, and event meaning
Problem
Use the height graph \(h(t)\), where \(t\) is seconds and \(h\) is meters. Interpret the \(x\text{-}\text{intercept}\) at \(t~=~4\) using coordinates, units, and event meaning.
Interpret a graph point in the order the axes define it: horizontal input first, vertical output second, with units attached to both. An x-intercept is not automatically a maximum or an initial value; it marks where the output is zero. Translate that zero output into the event it represents in the height context.
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