Answer:
Answer for 9: C. 36
Answer for 10: G. 6
Answer for 12: F
Step-by-step explanation:
Answer:
The slope of the graph is 10.
Cheese $1.99 * 1/2 = $1.00
Sliced Ham $3.29 * 3 = $9.87
Bread $1.59 * 2 = $3.18
Potato Chips $3 * 2 = $6
Salsa $1.39 * 1 = $1.39
Total $1.00+$9.87+$3.18+$6+$1.39
Total Spent $21.44
Coupon 1 $21.44-$4.00=$17.44
Coupon 2 $21.44 * 10% = $2.14
$21.44 - $2.14 =$19.30
Coupon 1 will save you the most money
Answer:
Step-by-step explanation:
If this is an exponential function, it is of the form
where x and y are coordinates from your table, a is the intial value, and b is the growth/decay rate. To find out what the equation is that represents this data, choose 2 points and solve first for a and then for b. Just a hint: If at all possible, choose the coordinate that gives you an x of 0. You'll see why in a minute.
I chose the first 2 points from your table: (0, .2) and (1, .8). Solving first for a:
The reason to choose the x of 0 as one of your points is because anything raised to the power of 0 is 1. So our equation then becomes:
so
a = .2 Easy enough.
Now use that value along with the other coordinate to solve for b:
b to the first is just b, so,
.8 = .2b
Divide both sides by .2 and you'll get that
b = 4
The equation, then, is
which is growth, since the value for b is greater than 1.
