Chapter 1: Fundamentals
1.2. Exponents and Radicals
The speed of light is about 186,000 mi/s. Use the information in Exercise 88(a) to find how long it takes for a light ray from the sun to reach the earth.
The imaginary number i has the property that .
Explain in your own words what it means for an equation to model a real-world situation, and give an example.
We find the “steepness.” Or slope, of a line passing through two points by dividing the difference in the coordinates of these points by the difference in the coordinates . So the line passes through the points (0,1) and (2,5) slope.
Question: 1. Give an example of each of the following:
- A natural number
- An integer that is not a natural number
- A rational number that is not an integer
- An irrational number
The point that is 3 units to the right of the y-axis and 5 units below the x-axis has coordinates.
(a) If then .
(b) If then .
(c) If then
(d)If then .
a. Using exponential notation, we can write the productas ______ .
b, In the expressionthe number 3 is called the ______ , and the number 4 is called the _____ .
Give an example of each of the following:
a. A natural number
b. An integer that is not a natural number
c. A rational number that is not an integer
d. An irrational number
The solutions of the equation are the _____-intercepts of the graph of.