Answer: incomplete question
Find inverse
F(x)=5x-3/4
Ans: y/5+15/4=x
Step-by-step explanation: assuming f(x) to be y
Therefore y=5x-3/4
Y+3/4=5x
Dividing all through by 5 gives
Y/5+15/4=X
The idea here is to take all three of those points and sub them into the general form of the quadratic equation and solve 3 equations by doing them 2 at a time. The general form is y = ax^2 + bx + c. If we set up the first two equations together using the x and y coordinates of the first 2 coordinates given, the system looks like this: 2 = a(-1)^2 + b(-1) + c
-1 = a(0)^2 +b(0) + c
Solving the second one gives you that c = -1, so we already know c. Solving the first equation we get 2 = a - b - 1, or 3 = a - b, subbing in a -1 for c. The next equation, using the last coordinate, looks like this: 5 = a(2)^2 + b(2) - 1 and
5 = 4a + 2b - 1 and 6 = 4a + 2b. Now we have these two equations left:
3 = a - b and 6 = 4a + 2b. Solve the first equation for b to get it in terms of a only: b = a - 3. Now sub in that b value for b in the second equation:
6 = 4a + 2(a - 3) and 6 = 6a - 6 and 12 = 6a so a = 2. Now we have a and c. Sub in the a value of 2 into b = a - 3 to get 3 = 2 - b. Solve for b to get that b = -1. So our equation in the end finally is y = 2x^2 - x - 1.
Answer:
0x²-7xy+10y²
Step-by-step explanation:
4x²-5xy+3y² + 8x²+7xy-6y²
4x²+8x²-5xy+7xy+3y²-6y²
=12x²+2xy-3y²
12x²-5xy+3y² + -2x²-9xy+13y²
12x²-5xy+3y² - 2x²-9xy+13y²
12x²-2x²-5xy-9xy+3y²+13y²
= 10x²-7xy+10y²
Hoped I helped
Add how many days points from lowest up too but not including 82. there are 12 of them third option, 12