Mathematics for IGCSE & O level - Graphs Of Functions (Section 3 - No. 19) | ExamPlay

Mathematics for IGCSE & O level - Graphs Of Functions (Section 3 - No. 19)

What is the value of the y-coordinate when x = 1, for the equation y = x² + 2x?

1

2

3

4

Explanation

Substitute x=1: y = (1)² + 2(1) = 1 + 2 = 3.

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