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3 years ago

8

What is the domain graph

2 answers:

Nonamiya [84]3 years ago

3 0

Answer: The domain is all x-values or inputs of a function and the range is all y-values or outputs of a function. When looking at a graph, the domain is all the values of the graph from left to right. The range is all the values of the graph from down to up.

Naya [18.7K]3 years ago

3 0

Answer:

Answer: The domain is all x-values or inputs of a function and the range is all y-values or outputs of a function. When looking at a graph, the domain is all the values of the graph from left to right. The range is all the values of the graph from down to up.

Step-by-step explanation:

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If using the method of completing the square to solve the quadratic equation x^2 -4x +10 =0, which number would have to be added

Delvig [45]

Answer:

4 would have to be added to complete the square.

Step-by-step explanation:

We are given the following quadratic equation the question:

$x^2 -4x +10 =0$

We have to form a whole square to solve the quadratic equation.

$x^2 + ax + b\\=(x+c)^2+d\\\text{where}\\\\c = \dfrac{a}{2}$

We add and subtract the square of the coefficient of x.

$x^2 -4x =-10\\x^2 -4x + 4=-10+4\\(x-2)^2=-6\\x-2 =\pm \sqrt{6}i\\x = 2+\sqrt6i , 2-\sqrt6i$

Thus, we added and subtracted 4 in the quadratic equation to make it a complete square.

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