Mathematics for IGCSE & O level - Graphs Of Functions (Section 2 - No. 35)
Which features of the graph change when the 'c' value changes in y = ax² + bx + c?
The y-intercept
The x-intercepts
The vertex
The shape of the parabola
Explanation
The 'c' value is the y-intercept. Changes in 'c' cause the graph to move up or down vertically and therefore changes the y-intercept.
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