Topic 4 Study Guide

Front

What does the inequality b ≤ -2 represent on a number line?

Back

It represents all numbers less than or equal to -2, including -2 itself.

Front

Which symbol means 'more than'?

Back

>

Front

If y = x - 6, what is the value of y when x = 18?

Back

12

Front

What does the inequality r ≥ -6 indicate?

Back

It indicates that r can be -6 or any number greater than -6.

Front

If 6 > x, what can we say about the value of x?

Back

x must be less than 6.

Front

What is the meaning of the symbol < ?

Back

It means 'less than'.

Front

How do you graph the inequality b > -2?

Back

You draw a number line, place an open circle at -2, and shade to the right.

Front

What does the symbol ≤ mean?

Back

It means 'less than or equal to'.

Front

If the equation is y = x + 4, what is y when x = 2?

Back

y = 6.

Front

What is the difference between < and ≤?

Back

< means 'less than' (not including), while ≤ means 'less than or equal to' (including).