Using the quadratic formula, which of the following are the zeros of the
2 answers:
Answer:
The correct answer choice is D
Step-by-step explanation:
Given the quadratic equation:
y=x^2-x-5
We are required to find the zeros using the quadratic formula.
The quadratic formula is given as:
x= -b+ square root b^2-4ac/2a
Comparing the given equation with the standard form of a quadratic equation: y=ax²+bx+c
a=1, b=-1,c=5
Substitute these values into the formula.
x=1(-)
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Answer:
The equations represent circles that result in the same graph.
Step-by-step explanation:
we have
Divide by -10 both sides
-----> equation A
This is the equation of a circle centered at origin with radius
and
Divide by 5 both sides
-----> equation B
This is the equation of a circle centered at origin with radius
equation A and equation B are equal
therefore
The system has infinite solutions, because the equations represent circles that result in the same graph.