1. For what values of m will x2 + 8x ­ m = 0
a) Have only one root?
b) Have real and unequal roots?
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3. Absolute Values
Solving Equations Involving Absolute Values
The absolute value can be thought of as its distance from 0 on a number line.
Any positive and negative number are each a positive distance from 0.
Absolute values are only concerned with distance rather than direction
Ex. If the absolute value of m = 17, what are the possible values of m
Ex. If x + 2 = 12
a) What are the possible values that x + 2 might equal?
b) What are the possible values for x?
Ex.
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6. You must solve two equations
One when the value of is equal to the positive value of
the right side
The other when the value of is equal to a negative value
of the right side
Once you find all of the possible values for x you must then check
your solutions in the equation
You will find through your check that some of the solutions may not
be possible
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