You take 350/22.75 and the answer i came up with is 15.38461538
x is equal too 3. You can check your answer by subtracting 18-15
Answer:
![y=-4x^{2} +7x+6\\](https://tex.z-dn.net/?f=y%3D-4x%5E%7B2%7D%20%2B7x%2B6%5C%5C)
Step-by-step explanation:
![y=ax^{2} +bx+c\\](https://tex.z-dn.net/?f=y%3Dax%5E%7B2%7D%20%2Bbx%2Bc%5C%5C)
Points are (1,9), (2,4), and (4,-30).
![\\9=a+b+c\\4=4a+2b+c\\-30=16a+4b+c\\](https://tex.z-dn.net/?f=%5C%5C9%3Da%2Bb%2Bc%5C%5C4%3D4a%2B2b%2Bc%5C%5C-30%3D16a%2B4b%2Bc%5C%5C)
Subtract the first from the second.
-5 = 3a+b
Subtract 4 times the second from the third.
-34=12a+2b
-14=-2b
b=7
a=-4
c=6
Answer:
The y-intercept and x-intercept of the line are 2 and -4 respectively.
Step-by-step explanation:
Given equation of line -x + 2y = 4
We have to find the y-intercept and x-intercept of the line.
Consider the given equation of line -x + 2y = 4
the y-intercept of line is the point where the line touches y axis and we know at y axis the coordinate of x is 0.
Thus, putting x = 0 in line equation , we get,
-(0) + 2y = 4
⇒ y = ![\frac{4}{2}](https://tex.z-dn.net/?f=%5Cfrac%7B4%7D%7B2%7D)
⇒ y = 2
the x-intercept of line is the point where the line touches x axis and we know at x axis the coordinate of y is 0.
-x + 2(0) = 4
⇒ x = - 4
Thus, the y-intercept and x-intercept of the line are 2 and -4 respectively.