What is the definition of a linear equation?
1st Semester Algebra Review

Quiz
•
Mathematics
•
9th Grade
•
Hard
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15 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
An equation that forms a straight line when graphed, typically in the form y = mx + b.
An equation that represents a curve on a graph.
An equation that has no solutions.
An equation that can only be solved using complex numbers.
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
How do you find the slope of a line given two points (x1, y1) and (x2, y2)?
Use the formula: slope = (y2 - y1) / (x2 - x1).
Calculate the average of the y-coordinates.
Subtract the x-coordinates and divide by the sum of the y-coordinates.
Use the formula: slope = (x2 - x1) / (y2 - y1).
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is the y-intercept of a line?
The point where the line crosses the x-axis, represented as (a, 0) in the equation y = mx + b.
The point where the line crosses the y-axis, represented as (0, b) in the equation y = mx + b.
The slope of the line, represented as m in the equation y = mx + b.
The distance from the origin to the line, measured along the y-axis.
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What does it mean if a system of equations has infinitely many solutions?
The lines representing the equations are parallel and never intersect.
The lines representing the equations coincide, meaning they are the same line.
The lines representing the equations intersect at exactly one point.
The lines representing the equations have different slopes.
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
How do you determine if a relation is a function from a set of ordered pairs?
Check if any x-value is repeated; if it is, the relation is not a function.
Verify that all y-values are unique for each x-value.
Ensure that the relation contains at least one ordered pair.
Count the total number of ordered pairs in the relation.
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What does the graph of x > 2 look like?
A line on the x-axis starting from 2 and extending to the right, not including 2.
A line on the x-axis starting from 2 and extending to the left, including 2.
A vertical line at x = 2, including all points on the line.
A shaded area to the left of x = 2, including 2.
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
What is a function?
A relation where each input has exactly one output.
A set of numbers that can be added together.
A method for solving equations with multiple variables.
A graphical representation of data points.
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