The graphs of \(y = 2x + 1\) and \(y = 2x - 2\) are shown below. The graph of \(y = 2x + 1\) crosses the \(y\)-axis at (0, 1). The graph of \(y = 2x - 2\) crosses the ...

A value of \(y\) will give two possible values of \(x\) because a quadratic graph is symmetrical. To find a \(y\)-value from a given \(x\)-value: On the \(x\)-axis, locate the given amount.