Mathematics for IGCSE & O level - Graphs Of Functions (Section 3 - No. 15)
What is the effect of a negative 'a' value on the graph of y = ax²?
The graph opens upwards.
The graph opens downwards.
The graph shifts to the right.
The graph shifts to the left.
Explanation
A negative 'a' value causes the parabola to open downwards.
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