Algebra 1 Final Exam Review Qs

Front

What is the slope-intercept form of a linear equation?

Back

The slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept.

Front

How do you find the slope between two points (x1, y1) and (x2, y2)?

Back

The slope (m) is calculated as m = (y2 - y1) / (x2 - x1).

Front

What does it mean if two lines have infinitely many solutions?

Back

It means the lines are coincident, or they lie on top of each other.

Front

What is the y-intercept of the line y = -1/2x + 2?

Back

The y-intercept is 2, which is the value of y when x = 0.

Front

How do you graph a linear equation?

Back

To graph a linear equation, identify the y-intercept, plot it, and use the slope to find another point.

Front

What is the slope of the line through the points (1, 2) and (8, 6)?

Back

The slope is 4/7.

Front

What does a slope of 0 indicate about a line?

Back

A slope of 0 indicates a horizontal line.

Front

What does an undefined slope indicate about a line?

Back

An undefined slope indicates a vertical line.

Front

What is the difference between one solution, no solution, and infinitely many solutions in a system of equations?

Back

One solution means the lines intersect at one point, no solution means the lines are parallel, and infinitely many solutions mean the lines are the same.

Front

How do you determine if a point lies on a line given by an equation?

Back

Substitute the x-value of the point into the equation and see if the resulting y-value matches the y-value of the point.