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Mathematics for IGCSE & O level - Sketching Curves (Section 2 - No. 44)

Where is the y-intercept for y = 2^x - 8 located?
(0, -8)
(0, -7)
(8, 0)
(-8, 0)

Explanation

Substitute x = 0 to find the y-intercept: y = 2⁰ - 8 = -7.

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