Question
A classmate claims that the Junction g(x)=-3e^x-2+6 is the parent function of f(x)=e^x reflected across the y -axis, vertically compressed by a factor of 3 translated to the left 2 units, and translated up 6 units. Explain what the classmate described incorrectly and describe g(x) as a series of transformations of f(x) Part 1 out of 2 Identify which transformations the classmate described incorrectly. Reflected across the y -axis. (select) square Vertically compressed by a factor of 3. (select) square Translated to the left 2 units. (select) square Translated up 6 units (select) square
Solution
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Skylar
Professional ยท Tutor for 6 years
Answer
### Reflected across the y-axis. (select)
### Vertically compressed by a factor of 3. (select)
### Translated to the left 2 units. (select)
### Translated up 6 units. (select)
Explanation
## Step 1: Analyze the Transformation related to the x-variable### The function
has the term
, which represents a horizontal translation. A term of
shifts the graph 2 units to the *right*, not to the left.## Step 2: Analyze the Transformations related to the entire function### The function
has a coefficient of -3 multiplied by the exponential term. The negative sign indicates a reflection across the x-axis, not across the y-axis. The 3 represents a vertical *stretch* by a factor of 3, not a compression. The +6 added to the function represents a vertical translation of 6 units upwards, which is correct.