Sovi.AI - AI Math Tutor

Scan to solve math questions

QUESTION IMAGE

what are the domain, range, and asymptote of (h(x) = 2^{x + 4})? domain…

Question

what are the domain, range, and asymptote of (h(x) = 2^{x + 4})?

domain: ({x mid x > 0}); range: ({y mid y \text{ is a real number}}); asymptote: (y = 0)
domain: ({x mid x > -4}); range: ({y mid y \text{ is a real number}}); asymptote: (y = -4)
domain: ({x mid x \text{ is a real number}}); range: ({y mid y > 0}); asymptote: (y = 0)
domain: ({x mid x \text{ is a real number}}); range: ({y mid y > 0}); asymptote: (y = -4)

Explanation:

Response

<pre_analysis>
{
"quality": "clear",
"question_count": 1,
"skills_matched": [
"step_cot",
"multiple_choice_formatter",
"explain_then_answer",
"tutor",
"mastery_adaptive_brevity"
],
"needs_drawing": true,
"concepts_used": [
"Exponential Functions",
"Function Transformations",
"Domain and Range",
"Exponential Range"
],
"new_concepts": [
"Horizontal Asymptote"
],
"current_concepts": [
"Exponential Functions",
"Function Transformations",
"Domain and Range",
"Exponential Range",
"Horizontal Asymptote"
]
}
</pre_analysis>

<reasoning>

Analyze the domain of the function

Using the Domain and Range and Exponential Functions knowledge points
\[

$$\begin{aligned} &\text{For } h(x) = 2^{x + 4}\\ &\text{Domain: } \{x \mid x \text{ is a real number}\} \end{aligned}$$

\]

Determine the range of the function

Using the Exponential Range and Function Transformations knowledge points
\[

$$\begin{aligned} &2^{x+4} > 0 \quad \forall x \in \mathbb{R}\\ &\text{Range: } \{y \mid y > 0\} \end{aligned}$$

\]

Find the horizontal asymptote

Using the Exponential Functions knowledge point
\[

$$\begin{aligned} &\lim_{x \to -\infty} 2^{x+4} = 0\\ &\text{Asymptote: } y = 0 \end{aligned}$$

\]
</reasoning>

<answer>
<mcq-option>domain: \(\{x \mid x > 0\}\); range: \(\{y \mid y \text{ is a real number}\}\); asymptote: \(y = 0\)</mcq-option>
<mcq-option>domain: \(\{x \mid x > -4\}\); range: \(\{y \mid y \text{ is a real number}\}\); asymptote: \(y = -4\)</mcq-option>
<mcq-correct>domain: \(\{x \mid x \text{ is a real number}\}\); range: \(\{y \mid y > 0\}\); asymptote: \(y = 0\)</mcq-correct>
<mcq-option>domain: \(\{x \mid x \text{ is a real number}\}\); range: \(\{y \mid y > 0\}\); asymptote: \(y = -4\)</mcq-option>
</answer>

<plot>
{
"elements": [
{
"type": "functiongraph",
"params": [
{
"js": "Math.pow(2, x + 4)",
"latex": "2^{x+4}"
},
-10,
2
],
"properties": {
"strokeColor": "#8C55F2",
"strokeWidth": 3,
"name": "h(x) = 2^{x+4}",
"withLabel": true
}
},
{
"type": "line",
"params": [
[-10, 0],
[10, 0]
],
"properties": {
"strokeColor": "#F2557F",
"strokeWidth": 1.5,
"dash": 2,
"name": "y = 0",
"withLabel": true
}
}
],
"timestamps": [0.5, 1.0]
}
</plot>

<post_analysis>
{
"subject": "Mathematics",
"question_type": "Multiple Choice",
"knowledge_point": [
"Mathematics",
"Algebra",
"Exponential Functions"
]
}
</post_analysis>

Answer:

<pre_analysis>
{
"quality": "clear",
"question_count": 1,
"skills_matched": [
"step_cot",
"multiple_choice_formatter",
"explain_then_answer",
"tutor",
"mastery_adaptive_brevity"
],
"needs_drawing": true,
"concepts_used": [
"Exponential Functions",
"Function Transformations",
"Domain and Range",
"Exponential Range"
],
"new_concepts": [
"Horizontal Asymptote"
],
"current_concepts": [
"Exponential Functions",
"Function Transformations",
"Domain and Range",
"Exponential Range",
"Horizontal Asymptote"
]
}
</pre_analysis>

<reasoning>

Analyze the domain of the function

Using the Domain and Range and Exponential Functions knowledge points
\[

$$\begin{aligned} &\text{For } h(x) = 2^{x + 4}\\ &\text{Domain: } \{x \mid x \text{ is a real number}\} \end{aligned}$$

\]

Determine the range of the function

Using the Exponential Range and Function Transformations knowledge points
\[

$$\begin{aligned} &2^{x+4} > 0 \quad \forall x \in \mathbb{R}\\ &\text{Range: } \{y \mid y > 0\} \end{aligned}$$

\]

Find the horizontal asymptote

Using the Exponential Functions knowledge point
\[

$$\begin{aligned} &\lim_{x \to -\infty} 2^{x+4} = 0\\ &\text{Asymptote: } y = 0 \end{aligned}$$

\]
</reasoning>

<answer>
<mcq-option>domain: \(\{x \mid x > 0\}\); range: \(\{y \mid y \text{ is a real number}\}\); asymptote: \(y = 0\)</mcq-option>
<mcq-option>domain: \(\{x \mid x > -4\}\); range: \(\{y \mid y \text{ is a real number}\}\); asymptote: \(y = -4\)</mcq-option>
<mcq-correct>domain: \(\{x \mid x \text{ is a real number}\}\); range: \(\{y \mid y > 0\}\); asymptote: \(y = 0\)</mcq-correct>
<mcq-option>domain: \(\{x \mid x \text{ is a real number}\}\); range: \(\{y \mid y > 0\}\); asymptote: \(y = -4\)</mcq-option>
</answer>

<plot>
{
"elements": [
{
"type": "functiongraph",
"params": [
{
"js": "Math.pow(2, x + 4)",
"latex": "2^{x+4}"
},
-10,
2
],
"properties": {
"strokeColor": "#8C55F2",
"strokeWidth": 3,
"name": "h(x) = 2^{x+4}",
"withLabel": true
}
},
{
"type": "line",
"params": [
[-10, 0],
[10, 0]
],
"properties": {
"strokeColor": "#F2557F",
"strokeWidth": 1.5,
"dash": 2,
"name": "y = 0",
"withLabel": true
}
}
],
"timestamps": [0.5, 1.0]
}
</plot>

<post_analysis>
{
"subject": "Mathematics",
"question_type": "Multiple Choice",
"knowledge_point": [
"Mathematics",
"Algebra",
"Exponential Functions"
]
}
</post_analysis>