Unit 1 review

Front

What is the midpoint formula for a line segment with endpoints (x1, y1) and (x2, y2)?

Back

Midpoint = ((x1 + x2)/2, (y1 + y2)/2)

Front

How do you find the y-coordinate of the midpoint of a line segment?

Back

Use the formula: y-coordinate = (y1 + y2)/2, where y1 and y2 are the y-coordinates of the endpoints.

Front

What does it mean for points to be collinear?

Back

Collinear points lie on the same straight line.

Front

What is a radical in mathematics?

Back

A radical is an expression that includes a root, such as a square root or cube root.

Front

How do you simplify a radical expression?

Back

Factor the number under the radical into its prime factors and simplify by taking out pairs of factors.

Front

What is the definition of a line in geometry?

Back

A line is a straight one-dimensional figure that has no thickness and extends infinitely in both directions.

Front

What is the difference between a line and a line segment?

Back

A line extends infinitely in both directions, while a line segment has two endpoints.

Front

What are coordinates in a Cartesian plane?

Back

Coordinates are a pair of numbers (x, y) that define a point's position on the plane.

Front

What is the significance of the x-coordinate in a point (x, y)?

Back

The x-coordinate indicates the horizontal position of the point on the Cartesian plane.

Front

What is the significance of the y-coordinate in a point (x, y)?

Back

The y-coordinate indicates the vertical position of the point on the Cartesian plane.