Answer:
To find the x-intercepts we can write:
0 = -1/2(x + 3)² + 4
0 = -1/2(x² + 6x + 9) + 4
0 = -1/2x² - 3x - 9/2 + 4
0 = -1/2x² - 3x - 1/2
0 = x² + 6x + 1
x = -3 ± 2√2 (use quadratic formula)
As a decimal this can be written as x = -5.83, x = -0.17.
If x is the sales amount over $20,000, the function g(x) giving Paul's commission is <span>0.15x</span>
Answer:
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Answer:
1. No.
Since f(1)=f(3) and 
then f isn't one-to-one.
2. No
Since f(0)=f(2) and 
then f isn't one-to-one.
3. No
Since f(0)=f(2) and then f isn't one-to-one.
4. Yes
Since 
, then f is one-to-one
5. Since f(1)=f(3) and then, f isn't one-to-one
