Mathematics for IGCSE & O level - Sketching Curves (Section 1 - No. 50)
In the equation y = a^x, which factor changes the y-intercept?
a
x
None, the intercept is always 1.
Any constant added or subtracted to the whole function
Explanation
Adding or subtracting a constant from the entire exponential function shifts the graph vertically, changing the y-intercept.
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