Math Problem Statement

solve these and show the work

Solve the given functions and evaluate at specified points.

Solution

I can see the image you uploaded contains several functions that need to be evaluated. Let's break them down and solve each step by step.

1. First Box:

f(y)=3y,f(36)f(y) = 3 - \sqrt{y}, \quad f(36)

We substitute y=36y = 36: f(36)=336=36=3f(36) = 3 - \sqrt{36} = 3 - 6 = -3

2. Second Box:

f(x)=3xx,f(6)f(x) = \frac{|3x|}{x}, \quad f(-6)

We substitute x=6x = -6: f(6)=3(6)6=186=3f(-6) = \frac{|3(-6)|}{-6} = \frac{18}{-6} = -3

3. Third Box:

f(x)=2x+2,f(8)f(x) = 2x + 2, \quad f(-8)

Substituting x=8x = -8: f(8)=2(8)+2=16+2=14f(-8) = 2(-8) + 2 = -16 + 2 = -14

4. Fourth Box:

f(x)=x2+2,f(4)f(x) = -x^2 + 2, \quad f(-4)

Substituting x=4x = -4: f(4)=(4)2+2=16+2=14f(-4) = -(-4)^2 + 2 = -16 + 2 = -14

5. Fifth Box:

f(t)=2t2+8t,f(4)f(t) = \frac{2t^2 + 8}{t}, \quad f(4)

Substituting t=4t = 4: f(4)=2(4)2+84=2(16)+84=32+84=404=10f(4) = \frac{2(4)^2 + 8}{4} = \frac{2(16) + 8}{4} = \frac{32 + 8}{4} = \frac{40}{4} = 10

6. Sixth Box:

f(x)=x217+2,f(9)f(x) = \sqrt{x^2 - 17} + 2, \quad f(-9)

Substituting x=9x = -9: f(9)=(9)217+2=8117+2=64+2=8+2=10f(-9) = \sqrt{(-9)^2 - 17} + 2 = \sqrt{81 - 17} + 2 = \sqrt{64} + 2 = 8 + 2 = 10

7. Seventh Box:

f(x)=x3+2,f(2)f(x) = -|x|^3 + 2, \quad f(-2)

Substituting x=2x = -2: f(2)=23+2=(23)+2=(8)+2=8+2=6f(-2) = -|-2|^3 + 2 = -(2^3) + 2 = -(8) + 2 = -8 + 2 = -6

8. Eighth Box:

f(t)=t2+11,f(5)f(t) = -\sqrt{t^2 + 11}, \quad f(5)

Substituting t=5t = 5: f(5)=(5)2+11=25+11=36=6f(5) = -\sqrt{(5)^2 + 11} = -\sqrt{25 + 11} = -\sqrt{36} = -6


Summary of Results:

  1. f(36)=3f(36) = -3
  2. f(6)=3f(-6) = -3
  3. f(8)=14f(-8) = -14
  4. f(4)=14f(-4) = -14
  5. f(4)=10f(4) = 10
  6. f(9)=10f(-9) = 10
  7. f(2)=6f(-2) = -6
  8. f(5)=6f(5) = -6

Would you like a detailed explanation of any specific solution? Here are five related questions you could explore:

  1. What are the properties of absolute value functions?
  2. How do square root functions behave for positive and negative values?
  3. What are the implications of squaring negative values in a function?
  4. Can you explain how to simplify fractional expressions?
  5. How do you evaluate composite functions like those involving square roots and absolute values?

Tip: Always check for domain restrictions when dealing with square roots and denominators to avoid undefined expressions.

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Math Problem Analysis

Mathematical Concepts

Square roots
Absolute values
Rational functions
Quadratic functions
Exponents

Formulas

f(y) = 3 - √y
f(x) = |3x| / x
f(x) = 2x + 2
f(x) = -x² + 2
f(t) = (2t² + 8) / t
f(x) = √(x² - 17) + 2
f(x) = -|x|³ + 2
f(t) = -√(t² + 11)

Theorems

Properties of square roots
Properties of absolute values
Quadratic function behavior
Fractional simplifications

Suitable Grade Level

Grades 9-12