Mid-Term Quick Review

Front

How many solutions do the equations y = 3x + 2 and y = 3x - 7 have?

Back

no solution

Front

Round the number 1529.4601294 to the nearest thousandths place.

Back

1529.460

Front

What type of boundary and shading is used for the inequality y > 2x + 4?

Back

dashed line and shade above

Front

What is the cardinal number of the set A = {1, 2, 7, 9, 13, 19}?

Back

6

Front

Identify the subset of U = {1,3,5,7,9,11}.

Back

D = {1, 7, 9, 11}

Front

What is a linear equation?

Back

An equation that makes a straight line when graphed, typically in the form y = mx + b.

Front

Define a subset in set theory.

Back

A set A is a subset of set B if every element of A is also an element of B.

Front

What is the difference between a solid line and a dashed line in graphing inequalities?

Back

A solid line indicates that points on the line are included in the solution, while a dashed line indicates they are not.

Front

Explain the concept of cardinality in sets.

Back

Cardinality refers to the number of elements in a set.

Front

What does it mean to round a number?

Back

To round a number means to reduce the digits while keeping the value close to the original number.