Mathematics for IGCSE & O level - Graphs Of Functions (Section 2 - No. 49)
If the roots of a quadratic equation are real and equal, what does the graph of the equation look like?
It does not touch the x-axis.
It intersects the x-axis at two distinct points.
It touches the x-axis at one point.
It is a straight line.
Explanation
Equal roots mean the graph touches the x-axis at the vertex.
Comments (0)
