What's the equation of the axis of symmetry of g(x) = x2 + 4x + 3?
1 answer:
A quadratic equation is in the form of ax²+bx+c. The equation of the axis of symmetry of g(x) = x² + 4x + 3 is x=-2. The correct option is A.
<h3>What is a quadratic equation?</h3>A quadratic equation is an equation whose leading coefficient is of second degree also the equation has only one unknown while it has 3 unknown numbers. It is written in the form of ax²+bx+c.
The given function is a quadratic function, and a quadratic function is always symmetric about the axis that passes through its vertex. Therefore, in order to know the symmetry of the given quadratic function, we need to calculate the vertex of the function.
Plotting the function on the graph as shown below, the vertex of the parabola will be at (-2,-1). Also, the parabola is in terms of x, therefore, the symmetry of the parabola will be perpendicular to the x-axis and will lie at x=-2.
Hence, the equation of the axis of symmetry of g(x) = x² + 4x + 3 is x=-2.
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Answer:
-√64: rational
15 pi: irrational
46.86 repeated: rational
15/19: rational
-2√6: irrational
Step-by-step explanation:
From the picture that I used, I was able to find out which ones were rational and irrational.
-√64: rational because it equals to -8
15 pi: has "pi" in it
46.86 repeated: as long as it's repeated, it's rational
15/19: fractions are usually rational
-2√6: √6 is cannot be rationalized
