Graph the function. y = 1^x
1 answer:
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You have 3 unknowns: a, b, and c. That means you have to have 3 equations to solve for the values of them. 3 unknowns needs 3 different equations. We will use the first 3 points in the table and thank God that one of them has an x value of 0. We will replace the x and y in the general form of the quadratic with the x and y from the table, 3 times, to find each variable. Watch how it works. We will start with (0, 15). 
. That gives us right away that c = 15. We will do the same thing again with the second value in the table along with the fact that c = 15 to get an equation in a and b. 
which simplifies to 4a+2b=.5. Now do the same for the third set of coordinates from the table. 
which simplifies down to 16a+4b=2. Solve those simultaneously. Multiply the first bolded equation by -4 and then add that one to the second bolded one. 
gives us -16a-8b=-2. Add that to the second bolded equation and the a terms cancel out giving us -4b=0 so b = 0. Subbing that back in we solve for a: 16a+4(0)=2 and 16a = 2. Therefore, a = 1/8. The quadratic then is 
Answer:
At the end krisi will receive 550
Step-by-step explanation:
We have given that krisi took $500
So the principle amount P = $500
Rate of interest r = 5%
Time t = 2 years
We know that simple interest is given by
So the amount which he receive = 500 +50 =550
So at the end krisi will receive 550