Math Problem Statement

Diketahui f(x) = x^2 - 3x digeser 4 satuan ke kiri dan 1 satuan ke atas sehingga menghasilkan g(x). g(x) = ...

Solution

The problem in the image involves transforming a function f(x)=x23xf(x) = x^2 - 3x by shifting it 4 units to the left and 1 unit upward to obtain a new function g(x)g(x).

Step 1: Shift 4 units to the left

Shifting a function to the left by 4 units is done by replacing xx with x+4x + 4. So, we have: f(x+4)=(x+4)23(x+4)f(x + 4) = (x + 4)^2 - 3(x + 4)

Step 2: Expand the expression

Now expand both terms: (x+4)2=x2+8x+16(x + 4)^2 = x^2 + 8x + 16 3(x+4)=3x12-3(x + 4) = -3x - 12 Thus, f(x+4)=x2+8x+163x12=x2+5x+4f(x + 4) = x^2 + 8x + 16 - 3x - 12 = x^2 + 5x + 4

Step 3: Shift 1 unit upward

Shifting the function upward by 1 unit means adding 1 to the entire expression: g(x)=(x2+5x+4)+1=x2+5x+5g(x) = (x^2 + 5x + 4) + 1 = x^2 + 5x + 5

Final Answer:

The transformed function g(x)g(x) is x2+5x+5x^2 + 5x + 5, which corresponds to option E.


Would you like more details or have any questions about the steps?

Here are 5 related questions to further explore:

  1. How does shifting a function horizontally and vertically affect its graph?
  2. What happens to the coefficients when a function is shifted?
  3. Can this transformation be applied to any polynomial function?
  4. How would the transformation differ for a cubic function?
  5. How do you graph a function after applying such transformations?

Tip: When shifting functions, always remember to adjust the variable inside the function for horizontal shifts and the entire expression for vertical shifts.

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Math Problem Analysis

Mathematical Concepts

Function Transformations
Algebra

Formulas

f(x) = (x + 4)^2 - 3(x + 4)
g(x) = f(x) + 1

Theorems

Function Shifting

Suitable Grade Level

Grades 7-9