Answer:
B. 1/2
Step-by-step explanation:
y = ax^2 + bx + c
14 = a(0)^2 + b(0) + c
c = 14
10.5 = a(1)^2 + b(1) + 14
10.5 = a + b + 14 ____(i)
8 = a(2)^2 + b(2) + 14
8 = 4a + 2b + 14
4 = 2a + b + 7 ___ (ii)
i - ii
10.5 - 4 = -a + 7
6.5 = -a + 7
a = 7- 6.5
a = 0.5
Answer:
$12.96
Step-by-step explanation:
The cost of the item = $12.00
The tax on the item = 12 times 0.08 =$0,96
So the total cost = $12.00 plus $0.96 = $12.96
The variable A would most likely be your "independent variable."
This is just standard convention. Nothing is really saying that your independent variable can not be on your Y axis; it is just widely accepted to put your changing variable on the x and your dependent variable on the y axis.
Answer:
y = -2x - 8
Step-by-step explanation:
We want to find the slope-intercept form of this equation. Slope-intercept form is denoted by: y = mx + b, where m is the slope and b is the y-intercept.
We already know that the slope is -2, so that means m = -2.
We also know the y-intercept (or the point where the line crosses the y-axis) is (0, -8), which means b = -8.
Thus, our equation is: y = -2x - 8.
<em>~ an aesthetics lover</em>