Free Practice Question
PS · Problem Solving
sub-505
Algebra
On a number line, if x is the midpoint between -4 and 2, and if y is the midpoint between -1 and 7, what number lies halfway between x and y?
Answer Choices
Correct answer marked belowA
0
B
1/2
1
Correct
D
3/2
E
2
See the full step-by-step explanation
You can see the correct answer above. Sign in for free to unlock the complete worked solution.
Track your performance and improve
Get detailed analytics, unlock full explanations, and move up difficulty tiers as you practice.
Explanation
Preview
Official Explanation
Official
To find x, which is the midpoint between -4 and 2, we calculate x = (-4 + 2) / 2 = -2 / 2 = -1. For y, the midpoint between -1 and 7…
Read the full explanation
Sign in for free to see the complete step-by-step solution to this question.
Comments
Sign in to join the discussion
No comments yet
Be the first to share your thoughts and help others understand it better.
Sign in to commentWhat this question tests
What it tests
Your ability to manipulate linear and quadratic expressions, substitute unknowns, and solve equations under time pressure.
Common trap
Losing a sign when moving terms across the equals sign, or dividing both sides by a variable that could equal zero.
Details
Difficulty
sub-505
Type
PS
Category