Function: y = 4|x| - 1.
Domain: R (all real numbers).
Range: As we know, the absolute value of x is always a non-negative number:
|x| >= 0
4|x| >= 4 * 0
4|x| >= 0
4|x| - 1 >= -1
y >= -1 <----- this is the range
I hope this helps. =)
Answer:
take the common between dy and y
do similarly also with x .and make a equation
The receipt shown:
BBQ BURGER W/ CHEESE : 9.99
CHICKEN FINGER BASKET : 8.99
MUSHROOM BURGER : 10.99
CHILI CHEESE FRIES : <u> 8.99</u>
TOTAL: 38.96
SALES TAX 8.75% <u> 3.41 </u> (38.96 * 8.75% = 3.409)
TOTAL: 42.37
TIP 15% <u> 6.36 (</u>42.37 * 15% = 6.3555)
TOTAL: 48.73
Total amount paid by Kacey and friends : $48.73
Total tip paid by Kacey and friends : $6.36
Total sales tax paid by Kacey and friends: $3.41
