Slope-intercept form is y = mx + b:
![y + 4 = - 2(x - 1) \\ y + 4 = - 2x + 2 \\ y = - 2x - 2](https://tex.z-dn.net/?f=y%20%2B%204%20%3D%20%20-%202%28x%20-%201%29%20%5C%5C%20y%20%2B%204%20%3D%20%20-%202x%20%2B%202%20%5C%5C%20y%20%3D%20%20-%202x%20-%202)
First, we factor the -2 into the parentheses. Then, we subtract 4 from both sides.
.35 x price of television (t) = x
Price of television(t) - x = discount price
Answer:
12
Step-by-step explanation:
The numbers of choices for each of B, C, D are independent of the choices the predecessors have made. It is clear where the car's owners will sit, so all we have to care about is where we put the other people. There are 16−4=12 places left in the cars, so there are 12!
4 (3a+2) = 5
12a + 8 = 5
12a = -3
a = -3/12 = -1/4
a = -1/4
Answer:
a. y = 7500 - 500x
b. $ 4,500
Step-by-step explanation:
a. Given,
The original value of the phone = $ 75,00
Let the linear function that shows the value of booth after x years,
y = b - ax,
For x = 0 years, y = 7500
⇒ 7500 = b - a(0) ⇒ b = 7500
For x = 15, y = 0,
0 = b - 15x ⇒ 0 = 7500 - 15a ⇒ 15a = 7500 ⇒ a = 500
Hence, the function that shows the value of car after x years,
y = 7500 - 500x
b. if x = 6,
The value of the booth after 6 years would be,
y = 7500 - 500(6) = 7500 - 3000 = $ 4,500