A & C… assuming that’s allowed
Answer:
the answer is 2.5
Step-by-step explanation:
Answer:
(3x - 2) (4x + 1)
Step-by-step explanation:
12x² - 5x - 2
Since the first term has a coefficient, you need to multiply -2 with 12 to get -24.
Two factors that add up to -5 and have a product of -24 are -8 and 3.
12x² - 8x + 3x - 2
Rearrange the expression to find the GCF.
12x² + 3x - 8x - 2
3x (4x + 1) + (-1)2(-4x -1)
3x (4x + 1) - 2 (4x + 1)
(3x - 2) (4x + 1)
Given :
When price is $2 dollars he sells 2400 units .
When price is $8 dollars he sells 600 units .
To Find :
If x represents the price of trucks and y the number of items sold, write an equation for the demand curve.
Solution :
Two points are given :
![(x_1,y_1)=(2,2400)](https://tex.z-dn.net/?f=%28x_1%2Cy_1%29%3D%282%2C2400%29)
![(x_2,y_2)=(8,600)](https://tex.z-dn.net/?f=%28x_2%2Cy_2%29%3D%288%2C600%29)
Now , slope is given by :
![m=\dfrac{y_2-y_1}{x_2-x_1}\\\\m=\dfrac{2400-600}{2-8}\\\\m=\dfrac{-1800}{6}\\\\m=-300](https://tex.z-dn.net/?f=m%3D%5Cdfrac%7By_2-y_1%7D%7Bx_2-x_1%7D%5C%5C%5C%5Cm%3D%5Cdfrac%7B2400-600%7D%7B2-8%7D%5C%5C%5C%5Cm%3D%5Cdfrac%7B-1800%7D%7B6%7D%5C%5C%5C%5Cm%3D-300)
Now , the equation of line containing these two points and slope -300 is :
![(y-y_1)=m(x-x_1)\\\\y-600=-300(x-8)\\\\y=-300x+2400+600\\\\y=-300x+3000](https://tex.z-dn.net/?f=%28y-y_1%29%3Dm%28x-x_1%29%5C%5C%5C%5Cy-600%3D-300%28x-8%29%5C%5C%5C%5Cy%3D-300x%2B2400%2B600%5C%5C%5C%5Cy%3D-300x%2B3000)
Therefore , equation for the demand curve is
.
Hence , this is the required solution .
Answer:
47
Step-by-step explanation:
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