Using the linear combination method, what is the solution to the system of linear equations 5 x + 3 y = negative 10 and Negative
20 x minus 7 y = 15? (–5, 1) (–1, 5) (1, –5) (5, –1)
1 answer:
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Answer:
(4,1)
Step-by-step explanation:
The vertex of the quadratic can be found using -b/2a. The vertex is the point (-b/2a, f(-b/2a)).
To find the x coordinate of the quadratic, define its a,b, and c. The quadratic has a = 2, b=-16, and c=31. Then -b/2a is -(-16)/2(2) = 16/4 = 4.
To find the y-coordinate, input the x=4 and solve for y.
The vertex is (4,1).