The relation y = x2 + 2x + k passes through the point (2,0). Find the value of k

Assessment: WAEC SSCE - General Mathematics - 2016 (Objective) Subject: General Mathematics

Question 1 Report

The relation y = x2 + 2x + k passes through the point (2,0). Find the value of k
Answer Details
We know that the relation y = x2 + 2x + k passes through the point (2,0), which means that when x=2, y=0. So, substituting these values in the relation, we get: 0 = 22 + 2(2) + k 0 = 4 + 4 + k 0 = 8 + k Therefore, k = -8. Hence, the value of k is -8.

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