DEOC Practice Test

Front

What is a negative translation in the y-direction?

Back

A negative translation in the y-direction means shifting a graph downward on the coordinate plane.

Front

What does it mean to reflect a shape across the x-axis?

Back

Reflecting a shape across the x-axis means flipping it over the x-axis, changing the sign of the y-coordinates of the points.

Front

What is a sample space in probability?

Back

A sample space is the set of all possible outcomes of a probability experiment.

Front

What does it mean for two triangles to be congruent?

Back

Two triangles are congruent if they have the same size and shape, meaning their corresponding sides and angles are equal.

Front

How do you find the probability of an event?

Back

The probability of an event is found by dividing the number of favorable outcomes by the total number of possible outcomes.

Front

What is a Venn diagram?

Back

A Venn diagram is a visual representation used to show the relationships between different sets, often used in probability.

Front

What is the sum of two spins if the result is 4?

Back

The possible pairs of spins that sum to 4 are (1,3), (2,2), and (3,1).

Front

What is the significance of congruent triangles in geometry?

Back

Congruent triangles are significant because they can be used to prove other geometric properties and theorems.

Front

What does it mean for a graph to show a translation?

Back

A translation of a graph means shifting it horizontally or vertically without changing its shape.

Front

How do you determine the value of x in congruent triangles?

Back

To determine the value of x in congruent triangles, set corresponding angles or sides equal to each other and solve for x.