Advanced MathEasyLowest point of a lifted parabola
Advanced Math practice question
In the xy-plane, the lowest point of the graph of y = x² + 6 is (a, b). What is the value of b?
Answer: 6
x² is smallest (0) at x = 0, so the lowest point is (0, 6) and b = 6.
Common wrong answers
- If you answered 0
- 0 is a, the x-coordinate of the lowest point; its y-coordinate is 6.
- If you answered 36
- 36 is 6²; the lowest y-value is the added constant 6.
- If you answered -6
- The +6 lifts the parabola up, so the bottom sits at +6.
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