T2 Mid-topic Review

Any positive number times itself will give a ​ (a)   product. Any negative ​ (b)   times itself will also give a positive ​ (c)   . The only way to get a ​ (d)   product is for one ​ (e)   to be negative while the other factor is positive. This is why the square root of a negative number is imaginary.

• positive
• number
• product.
• negative
• factor
• real
• integer
• imaginary
• rational
• irrational

Real numbers can be plotted on a ​ (a)   , but imaginary numbers, since they don't ​ (b)   in the physical world, cannot be ​ (c)   on a number line. Any number that cannot be plotted on a number line is an ​ (d)   number. ​ Rational and irrational numbers are all ​ (e)   numbers. Rational numbers include integers, whole numbers and natural numbers.

• number line
• plotted
• exist
• imaginary
• real
• fake
• irrational
• rational
• variables
• coefficients

Match the following. Note: Some numbers could belong to more than one category, match them so that all numbers are paired with the best fit.

• Rational

• Irrational

• 0.0

• Imaginary

• Whole

• Natural

Match the following. Note: Some numbers could belong to more than one category, match them so that all numbers are paired with the best fit.

• Natural

• Whole

• Irrational

• 0.0

• Rational

• Integer