Sanchez-CP TSIA Practice Test

Front

What is the slope of a line?

Back

The slope of a line is a measure of its steepness, typically represented as 'm' in the slope-intercept form of a linear equation (y = mx + b). It is calculated as the change in y divided by the change in x (rise/run).

Front

How do you find the area of a rectangle?

Back

The area of a rectangle is found by multiplying its length by its width (Area = length × width).

Front

What is the formula for the perimeter of a rectangle?

Back

The perimeter of a rectangle is calculated by adding together the lengths of all four sides, or using the formula: Perimeter = 2(length + width).

Front

What does it mean for a line to pass through a point?

Back

A line passing through a point means that the coordinates of that point satisfy the equation of the line. For example, if a line passes through (-1, 2), then when x = -1, y must equal 2 according to the line's equation.

Front

What is an x-intercept?

Back

The x-intercept of a line is the point where the line crosses the x-axis. It occurs when y = 0.

Front

How do you find the x-intercept from a linear equation?

Back

To find the x-intercept from a linear equation, set y to 0 and solve for x.

Front

What is the significance of the slope in a linear equation?

Back

The slope indicates the direction and steepness of the line. A positive slope means the line rises from left to right, while a negative slope means it falls.

Front

What is the difference between a function and a relation?

Back

A function is a specific type of relation where each input (x-value) is associated with exactly one output (y-value).

Front

What is the standard form of a linear equation?

Back

The standard form of a linear equation is Ax + By = C, where A, B, and C are integers, and A should be non-negative.

Front

What does it mean for an equation to be in slope-intercept form?

Back

An equation is in slope-intercept form if it is written as y = mx + b, where m is the slope and b is the y-intercept.