Semester 1 exam review

Front

What is the probability of an event occurring?

Back

The probability of an event is a measure of the likelihood that the event will occur, expressed as a number between 0 and 1.

Front

What is the formula for calculating probability?

Back

Probability = (Number of favorable outcomes) / (Total number of outcomes)

Front

What is a scale factor in dilation?

Back

A scale factor is a number that scales, or multiplies, a quantity. In dilation, it determines how much a figure is enlarged or reduced.

Front

How do you find the slope of a line?

Back

The slope (m) of a line is calculated as m = (y2 - y1) / (x2 - x1), where (x1, y1) and (x2, y2) are two points on the line.

Front

What does it mean for two lines to be parallel?

Back

Two lines are parallel if they have the same slope and will never intersect.

Front

What is the relationship between angles in a triangle?

Back

The sum of the interior angles in a triangle is always 180 degrees.

Front

What is a counterclockwise rotation?

Back

A counterclockwise rotation is a rotation that moves in the opposite direction of the hands of a clock.

Front

What is the definition of dilation in geometry?

Back

Dilation is a transformation that alters the size of a figure but not its shape.

Front

How do you determine the angle of rotation?

Back

The angle of rotation is determined by the amount of turn from the original position to the new position.

Front

What is the significance of the y-intercept in a linear equation?

Back

The y-intercept is the point where the line crosses the y-axis, representing the value of y when x = 0.