Advanced MathEasy–Mediumy-intercept after a vertical shift
Advanced Math practice question
The graph of y = x² − 6x + 5 in the xy-plane is shifted 3 units upward. What is the y-intercept of the resulting graph?
Answer: 8
The shifted graph is y = x² − 6x + 8. Its y-intercept is the value at x = 0: 8.
Common wrong answers
- If you answered 2
- 2 comes from shifting down instead of up.
- If you answered 5
- 5 is the y-intercept before the shift.
- If you answered 11
- 11 comes from adding 3 twice.
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