Alg 2 9/20

Which statement is true?

• The absolute value of 3 is -3
• The opposite of 7 is 7
• The absolute value of 5 is equal to the opposite of 5
• The opposite of -4 is equal to the absolute value of -4

What's a way to define absolute value?

• The value of a number
• The opposite of a number
• The distance of a number from zero
• The multiplicative inverse of a number

What is the reason that absolute value is always written as a positive?

• Absolute value is talking about numbers so it must be positive.
• Absolute value does not always have to be positive.
• Absolute value is like a clock it has only positive numbers.
• Absolute value is talking about distance, distance is always measured by positive numbers.

The absolute value of -3 is the distance between:

• 3 and -3 on the number line
• -3 and 0 on the number line
• 1 and 3 on the number line
• 1 and -3 on the number line

Select the true statement

• |-220| = -220 and 220
• -|220|=  220
• |-220|= 220
• |-220|= -220

|x| > 7 Is this an "and" or an "or"?

• And

• Or

Solve for the values of x:
(x - 3)(x + 6) = 0

• { -3, -6 }
• { 3, -6 }
• { -3, -6 }
• { 3, 6 }

How many real zeros does the function have?

• None
• 2
• 3
• 4

What are the zeros of the function?

• 4,1
• 3,1,-2,-5
• -3, -1, 2, 5
• -2,4

What is the y-intercept of the following cubic function?

• (1, 0)
• (0, 2)
• (-1, 0)
• (2, 0)