The equation representing pizza purchase and delivery in point slope form is y = 2x + 1 and the delivery fee is $1
The total cost of pizza including delivery can be broken down thus :
- Cost per pizza
- Number of pizza purchased
- Delivery fee (this is a constant)
General form of a point slope equation :
- y = a + bx
- y = total cost
- a = intercept (Constant)
- b = slope(cost per pizza)
- x = number of pizzas purchased
From the question :
- Total cost including delivery = $9 = y
- Cost per pizza = $4 = b
- Number of pizzas = 2
Putting the values into the equation :
9 = 4(2) + a
Solve for a
9 = 8 + a
9 - 8 = a
a = 1
This means that delivery fee is $1
The equation in point slope form is thus : y = 2x + 1
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Y = 1/3x + 3....slope is 1/3. A parallel line will have the same slope.
y = mx + b
slope(m) = 1/3
(2,0)...x = 2 and y = 0
now we sub and find b, the y int
0 = 1/3(2) + b
0 = 2/3 + b
-2/3 = b
so ur parallel equation is : y = 1/3x - 2/3
The ________ cavity contains the esophagus, trachea, bronchi, lungs, heart, and large blood vessels.
2 points
Cranial
Abdominal
Thoracic
Buccal
Answer: the answer is 7
Step-by-step explanation: add 9 to both sides, eliminating -9 so now you have 7x=49 divide both by 7 and you get x= 7 check it by inputing 7 for x, 7(7)-9=40
7(7)=49 next 49-9= 40
it checks out, so x= 7