NeSA NeSA Algebra & Functions 1 — Questions and Answers
Question 1: What is the value of x in the equation 2x + 5 = 17?
- 4
- 5
- 6 (Correct answer)
- 7
Correct answer: 6
2x + 5 = 17 → 2x = 12 → x = 6.
Question 2: Which expression represents 'three times a number decreased by 7'?
- 3 + n − 7
- 3(n − 7)
- 3n − 7 (Correct answer)
- 7 − 3n
Correct answer: 3n − 7
'Three times a number' is 3n, and 'decreased by 7' means subtract 7, giving 3n − 7.
Question 3: If f(x) = 2x − 3, what is f(5)?
- 5
- 7 (Correct answer)
- 10
- 13
Correct answer: 7
f(5) = 2(5) − 3 = 10 − 3 = 7.
Question 4: Which value of x satisfies 4x − 8 = 0?
- 1
- 2 (Correct answer)
- 3
- 4
Correct answer: 2
4x = 8 → x = 2.
Question 5: What is the slope of the line passing through (0, 2) and (3, 8)?
- 1
- 2 (Correct answer)
- 3
- 4
Correct answer: 2
Slope = (8 − 2) / (3 − 0) = 6/3 = 2.
Question 6: Which inequality is graphed as an open circle on a number line at 4 with an arrow pointing left?
- x ≥ 4
- x ≤ 4
- x > 4
- x < 4 (Correct answer)
Correct answer: x < 4
An open circle means the value is not included, and the arrow pointing left means x is less than 4.
NeSA NeSA Algebra & Functions 1
What is the value of x in the equation 2x + 5 = 17?