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Consider the following function:

[tex]\[ p(x) = -4 - \frac{4}{3} x \][/tex]

Step 1: Find the slope and the [tex]\( y \)[/tex]-intercept. Express the intercept as an ordered pair. Simplify your answer.


Sagot :

Certainly! To find the slope and the y-intercept of the linear function [tex]\( p(x) = -4 - \frac{4}{3}x \)[/tex], we can analyze its form. A linear equation is typically written in the standard form:

[tex]\[ y = mx + b \][/tex]

where [tex]\( m \)[/tex] represents the slope and [tex]\( b \)[/tex] represents the y-intercept.

Now, let's rewrite the given function in this form:

[tex]\[ p(x) = -4 - \frac{4}{3}x \][/tex]

Comparing this with [tex]\( y = mx + b \)[/tex], we can identify the terms:

- The term [tex]\(-\frac{4}{3}x\)[/tex] corresponds to [tex]\( mx \)[/tex], indicating that the slope [tex]\( m \)[/tex] is [tex]\(-\frac{4}{3}\)[/tex].
- The term [tex]\(-4\)[/tex] corresponds to [tex]\( b \)[/tex], indicating that the y-intercept [tex]\( b \)[/tex] is [tex]\(-4\)[/tex].

Thus, the slope of the function [tex]\( p(x) \)[/tex] is [tex]\(-\frac{4}{3}\)[/tex] and the y-intercept is [tex]\(-4\)[/tex].

To express the y-intercept as an ordered pair, we consider the point where the line intersects the y-axis. This occurs when [tex]\( x = 0 \)[/tex]. Substituting [tex]\( x = 0 \)[/tex] into the equation gives us:

[tex]\[ y = -4 - \frac{4}{3}(0) = -4 \][/tex]

So the y-intercept as an ordered pair is:

[tex]\[ (0, -4) \][/tex]

In summary:

- The slope is [tex]\(-\frac{4}{3}\)[/tex].
- The y-intercept is [tex]\(-4\)[/tex].
- The y-intercept as an ordered pair is [tex]\((0, -4)\)[/tex].