Algebra I A Chapter 5

Front

What does a solid line on a graph of an inequality indicate?

Back

It indicates that the inequality includes the boundary line, represented by the symbol 'or equal to.'

Front

In a direct variation, if y = kx, what is the value of k when y = 39 and x = 3?

Back

k = 13 (since 39 = 13 * 3).

Front

If y = 39 when x = 3, what is the value of y when x = 2 in a direct variation?

Back

y = 26 (since k = 13, y = 13 * 2).

Front

What does the symbol '≥' mean in an inequality?

Back

It means 'greater than or equal to.'

Front

How can you tell if a graph represents a positive association?

Back

If as one variable increases, the other variable also increases.

Front

What type of association is represented by a scatter plot where points are scattered without any clear trend?

Back

None.

Front

What does the symbol '>' indicate in an inequality?

Back

It indicates 'greater than' without including the boundary.

Front

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

Back

A solid line indicates 'or equal to,' while a dashed line indicates 'not equal to.'

Front

If a graph shows a negative association, what does that imply?

Back

As one variable increases, the other variable decreases.

Front

What is the general form of a direct variation equation?

Back

y = kx, where k is a non-zero constant.