All quadratic functions have the same type ... of the x-coordinates of the points where the graph crosses the x-axis. Draw the graph of \(y = x^2 -x – 4 \) and use it to find the roots of ...

Save guides, add subjects and pick up where you left off with your BBC account. The graphs above, \(y = 2x + 1\) and \(y = 2x - 2\) have the same gradient of 2. The lines are parallel. State the ...