AlgebraEasyChecking a point on a line
Algebra practice question
For the equation y = 2x + 5, what is the value of y when x = 3?
Answer: 11
2(3) + 5 = 11.
Common wrong answers
- If you answered 8
- 8 adds 3 and 5.
- If you answered 10
- 10 multiplies 2 by 5.
- If you answered 16
- 16 uses x = 5.5 or adds wrongly; 2(3) + 5 = 11.
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