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Find equation for the given line.A vertical line passing through $(-1,8).$

$x=-1$

Algebra

Chapter 1

Functions and their Applications

Section 1

The Line

Functions

Campbell University

Oregon State University

Harvey Mudd College

Baylor University

Lectures

01:43

In mathematics, a function is a relation between a set of inputs and a set of permissible outputs with the property that each input is related to exactly one output. An example is the function that relates each real number x to its square x^2. The output of a function f corresponding to an input x is denoted by f(x).

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for this problem. We want to find the equation for a line with a specific information known. We know that we have a vertical line and it passes through the point Negative 18 So let's take a moment and just think about what this line looks like. First of all, the point negative 18 Let's say that's about here, and this is a rough sketch. I'm not trying to be exact on grid lines, but negative one. It's gonna be somewhere up about their and it's a vertical line. That means my line. I'm going to my line, and Green is gonna go straight up and down through that point, and it is going to be parallel to the Y axis. Okay, so a vertical line That means that every point on this line has the exact same X value. I'm gonna I'm gonna go over here to x equally negative one. I could go up eight. I could go up seven. I could go up six. I could go up one. I could go down negative to negative three. But I'm always starting by going toe X equally negative one. So that is the equation of this line. X equals negative one. Hey,

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