Question
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Answer
The graph of the function
is a downward-opening parabola with its vertex at
and a y-intercept at
.
Solution
To analyze the function
and determine its graph, we can follow these steps:
-
Identify the type of function: This is a quadratic function in the standard form
, where , , and . -
Determine the vertex: The vertex of a quadratic function can be found using the formula
. -
Calculate the y-intercept: The y-intercept occurs when
. -
Determine the direction of the parabola: Since
, the parabola opens downwards.
Let’s perform the calculations for the vertex and y-intercept.
First, we will calculate the x-coordinate of the vertex:
Next, we will calculate the y-coordinate of the vertex by substituting the x-coordinate back into the function.
Finally, we will find the y-intercept by evaluating the function at
.
Let’s perform these calculations.
Calculate the value by following steps:
Calculate the value by following steps:
- step0: Calculate:
- step1: Multiply:
- step2: Calculate:
- step3: Remove 0:
Calculate or simplify the expression.
Calculate the value by following steps: - step0: Calculate:
- step1: Remove the parentheses:
- step2: Use the rules for multiplication and division:
- step3: Simplify:
- step4: Reduce the fraction:
The calculations yield the following results:
- The x-coordinate of the vertex is
. - The y-coordinate of the vertex, when substituting
into the function, is .
Now, let’s summarize the findings:
- The vertex of the parabola is at the point
. - The y-intercept of the function is
(when ). - Since
, the parabola opens downwards.
With this information, we can conclude that the graph of the function
is a downward-opening parabola with its vertex at
.
If you have specific graph options to choose from, please provide them, and I can help you identify the correct one.
Answered by UpStudy AI and reviewed by a Professional Tutor
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The Deep Dive
To understand the graph of the function
, it’s important to note that this is a quadratic function in the standard form
. Here,
,
, and
. Since the coefficient of
(which is
) is negative, the parabola opens downwards, resembling an upside-down U shape.
To make it engaging, you can think of it as a roller coaster that first rises to a peak and then swoops downwards! The vertex of the parabola can be found using the formula
. Plugging in our values, we find that the vertex is at
, which gives the highest point of the parabola before it descends.
Now, if you want to explore this further, you can analyze how the function behaves outside the vertex, determining its intercepts with the axes. Once you plot the vertex and intercepts, you’ll get a clear visual representation of this striking downward-opening parabola. Happy plotting!