To find the price of the stock after 12 weeks, you would have to plug in 12 to x
That would make your equation: y = -0.91(12) + 103.47
Then, you solve:
-0.91(12) would be -10.12
Your equation will now look like this:
y = - 10.12 + 103.47
Then you add -10.12 to 103.47
-10.12 + 103.47 = 92.55
y = 92.55
After 12 weeks, the price of the stocks would be $92.55
ANSWER
D.) 7x+2.8y
Hope this helped!
Answer:
Yes, it is a quadratic equation.
Step-by-step explanation:
<em>Let's solve it to make it a quadratic equation:</em>
=> ![\frac{x^2+1}{x^2} =5](https://tex.z-dn.net/?f=%5Cfrac%7Bx%5E2%2B1%7D%7Bx%5E2%7D%20%3D5)
=> x²+1 = 5x²
=> 5x²-x²-1 = 0
=> 4x²-1 = 0
<em>Comparing it with the standard form of quadratic equation i.e. </em>
![ax^2+bx+c = 0](https://tex.z-dn.net/?f=ax%5E2%2Bbx%2Bc%20%3D%200)
So, we get
a = 4 , b = 0 and c = -1
<u><em>So, yes. It is a quadratic equation and it is a pure quadratic equation since b is equal to 0.</em></u>
9^2 • 9^6 = 9^(2 + 6) = 9^8