Math Problem Statement

Find the missing values of x in the table given the equation y = 3 * (10^x).

Solution

The problem asks to find the missing values of xx in the table using the equation y=3×(10x)y = 3 \times (10^x).

Let's first analyze the table and equation:

The equation is: y=3×10xy = 3 \times 10^x This tells us that yy is 3 times 10 raised to the power of xx. We can use this to solve for xx when yy is given and vice versa.

Table breakdown:

xy
-13100\frac{3}{100} (or 0.03)
03
130
?300
?1503.56

We need to find the values of xx for y=300y = 300 and y=1503.56y = 1503.56.

Step-by-step solution:

  1. For y=300y = 300: 300=3×10x300 = 3 \times 10^x Dividing both sides by 3: 100=10x100 = 10^x Taking the logarithm base 10 of both sides: x=log10(100)=2x = \log_{10}(100) = 2

  2. For y=1503.56y = 1503.56: 1503.56=3×10x1503.56 = 3 \times 10^x Dividing both sides by 3: 501.19=10x501.19 = 10^x Taking the logarithm base 10 of both sides: x=log10(501.19)2.7x = \log_{10}(501.19) \approx 2.7

Final table with missing xx values:

xy
-10.03
03
130
2300
2.71503.56

Would you like more details or have any other questions about this process?


Here are 5 related questions:

  1. How does changing the base of the logarithm affect the calculation of xx?
  2. Can you derive the general form of the equation for any arbitrary aa in y=a×10xy = a \times 10^x?
  3. How would you approach solving for xx if the equation was y=5×10xy = 5 \times 10^x instead?
  4. What if the base of the exponential term was ee instead of 10, how would you solve for xx?
  5. How would you use logarithmic properties to solve more complex exponential equations?

Tip: To solve exponential equations like y=a×bxy = a \times b^x, isolating the exponential term and then taking the logarithm of both sides is often the most efficient approach.

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Math Problem Analysis

Mathematical Concepts

Exponential Functions
Logarithms

Formulas

y = 3 * 10^x
logarithm base 10 formula: x = log10(y/3)

Theorems

Logarithm Properties

Suitable Grade Level

Grades 9-12