Math Problem Statement

Let 2sqauretootx . If g(x) is the graph of f(x) shifted up 3 units and left 5 units, write a formula for g(x). =

Solution

We are given the function:

f(x)=2xf(x) = 2\sqrt{x}

and we need to determine the function g(x)g(x) after shifting it up 3 units and left 5 units.

Step 1: Left Shift by 5 Units

Shifting a function left by hh units means replacing xx with x+hx + h in the function. Since we shift left by 5:

f(x+5)=2x+5f(x+5) = 2\sqrt{x+5}

Step 2: Upward Shift by 3 Units

Shifting up by kk units means adding kk to the function:

g(x)=f(x+5)+3g(x) = f(x+5) + 3

Substituting f(x+5)f(x+5):

g(x)=2x+5+3g(x) = 2\sqrt{x+5} + 3

Thus, the formula for g(x)g(x) is:

g(x)=2x+5+3\boxed{g(x) = 2\sqrt{x+5} + 3}

Would you like a graph or further explanation?

Related Questions:

  1. How would the function change if it were shifted down instead of up?
  2. What is the domain of g(x)g(x)?
  3. How do horizontal and vertical shifts affect the range of f(x)f(x)?
  4. What are the new x- and y-intercepts of g(x)g(x)?
  5. If we reflect g(x)g(x) across the x-axis, what is the new equation?

Tip: When shifting a function horizontally, always modify the inside of the function. When shifting vertically, modify the outside of the function.

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Math Problem Analysis

Mathematical Concepts

Function Transformations
Square Root Functions

Formulas

Vertical Shift: g(x) = f(x) + k
Horizontal Shift: g(x) = f(x + h)

Theorems

Function Translation Rules

Suitable Grade Level

Grades 9-11