Table of Contents

## What is the power of X?

x is the base and n is the exponent or power. Definition: If x is a positive number and n is its exponent, then xn means x is multiplied by itself n times.

**What is the graph of x 2?**

Since x=2 is a vertical line, there is no y-intercept and the slope is undefined.

**What is the graph of x =- 2?**

The equation x=−2 has a graph that is a vertical line with all x -coordinates equal to −2 . The collection of points with x -coordinate (strictly) greater that −2 is to the right of this line. The graph of the inequality is shaded in blue.

### What does x =- 2 look like on a graph?

**What is the inverse of Fxx 2?**

Therefore, the function f (x) = x 2 does NOT have an inverse. There is also a simple graphical way to test whether or not a function is one-to-one, and thus invertible, the horizontal line test.

**How do I calculate my realistic half marathon time?**

Multiply this time by 2.223 to get your realistic half marathon time: 1:51 h. This is equal to a 5:16 min/km pace. 2. Do several timed runs during your training

#### How fast do I need to run a marathon?

Our marathon time calculator will automatically display the speed you need to achieve such a result – 10.55 km/h. The next value, your required pace, is what probably interests you the most.

**How to make a marathon in under 4 hours?**

To make a marathon in under 4 hours, you need an average pace of 5.69 min per km (5 minutes and 41 seconds). You can also use this marathon pace calculator to predict the time of your race, basing on your average training pace. To do it, you need to follow a very similar method as above.

**How do you calculate average pace for a marathon?**

You can calculate it easily by dividing the total distance of the race by the total time of running. On the other hand, the average pace describes how much time you need to run one kilometer or mile. It is usually expressed in minutes per unit distance; for example, your average marathon pace can be equal to 7:21 minutes per kilometer.