GED Test (Mathematical Reasoning, Science, Social Studies, Reasoning Through Language Arts)
Graphs and functions: practice questions
Our GED bank has 26 questions on this topic. Here are 5 of them with answers; the full mock exam draws from every topic, like the real one.
Question 1
Two lines, y = x + 2 and y = −x + 6, cross at which point?
- (2, 4)
- (−2, 0)
- (0, 6)
- (4, 2)
Show the answer
A. (2, 4) — x + 2 = −x + 6 → 2x = 4 → x = 2, y = 4.
Question 2
Which equation is a line with slope 2 through the point (1, 5)?
- y = 2x + 5
- y = 5x + 2
- y = 2x − 3
- y = 2x + 3
Show the answer
D. y = 2x + 3 — y − 5 = 2(x − 1) → y = 2x + 3.
Question 3
If f(x) = 3x − 4, what is f(5)?
- 11
- −11
- 1
- 19
Show the answer
A. 11 — 3(5) − 4 = 11.
Question 4
What is the slope of the line 2x + 4y = 8?
- 2
- −1/2
- 1/2
- −2
Show the answer
B. −1/2 — Solve for y: 4y = −2x + 8, y = −½x + 2.
Question 5
What is the slope of the line y = −3x + 7?
- 3
- −7
- −3
- 7
Show the answer
C. −3 — In y = mx + b, m is the slope.