Algebra 1 Semester 1 Final Exam Practice

Front

What is the formula to calculate the slope of a line passing through two points (x1, y1) and (x2, y2)?

Back

The slope (m) is calculated using the formula: m = (y2 - y1) / (x2 - x1).

Front

Find the slope of the line that passes through the points (-4, 7) and (-6, -4).

Back

Front

What is the result of simplifying the expression -12 ÷ 6 (-3) + 8?

Back

The result is 14.

Front

What is the equation of a horizontal line that passes through the point (1, 1)?

Back

The equation is y = 1.

Front

What is a function in mathematical terms?

Back

A function is a relation where each input has exactly one output.

Front

Does the relation {(1, 2), (1, 3), (2, 4)} represent a function?

Back

No, because the input 1 has two different outputs (2 and 3).

Front

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

Back

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

Front

Give the equation for the graph in slope-intercept form: a line with a slope of -2 and a y-intercept of 4.

Back

The equation is y = -2x + 4.

Front

What does it mean for a line to be vertical?

Back

A vertical line has an undefined slope and can be represented by the equation x = a constant.

Front

What is the y-intercept of the line represented by the equation y = 3x + 5?

Back

The y-intercept is 5.