Mathematics for IGCSE & O level - Sketching Curves (Section 2 - No. 14)
When sketching y=2^(x-1)+4, which of the following are needed? (Select all that apply)
y-intercept
Asymptote
x-intercept
Direction of opening
Explanation
An exponential graph requires the y-intercept and the horizontal asymptote to be properly sketched. Solving for 0=2^(x-1) + 4 is possible, which provides an x-intercept.
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