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Find the x-intercept

Find the x-intercept-example-1
User Tarantula
by
8.3k points

2 Answers

1 vote

Answer:

To find the zero of the function


f(x) = 3x + 27

you need to set the function equal to zero and solve for


x

Here's how you do it:

1. Set the function


f(x)

equal to zero:


3x + 27 = 0

2. Subtract 27 from both sides:


3x = -27

3. Divide both sides by 3:


x = -27 / 3

So, the zero of the function


f(x) = 3x + 27

is


x = -9

This means that the graph of the function crosses the x-axis at


x = -9

User BigTFromAZ
by
8.2k points
6 votes

Answer:

x - intercept = -9

Explanation:

To find the x-intercept of a function, we need to solve the equation f(x) = 0.

In this case, f(x) = 3x + 27, so we need to solve the equation

3x + 27 = 0.

Subtracting 27 from both sides of the equation, we get:

3x + 27 - 27 = 0 - 27

3x = -27

Dividing both sides of the equation by 3, we get:


\sf (3x)/(3)=(-27)/(3)

x = -9

Therefore, the x-intercept of the function f(x) = 3x + 27 is (-9, 0).

User Joseth
by
7.9k points