Respuesta :
Linear functions are functions that have uniform and constant rates.
(a) Ordered pairs
The ordered pair is given as (-9,-4) and (-3,-16).
The slope (m) is calculated as:
[tex]m = \frac{y_2 -y_1}{x_2 -x_1}[/tex]
So, we have:
[tex]m = \frac{-16 --4}{-3--9}[/tex]
[tex]m = \frac{-12}{6}[/tex]
[tex]m = -2[/tex]
Hence, the slope (m) is 2
(b) The rate of y = -7x + 1
The function is given as [tex]y = -7x + 1[/tex]
A linear function is represented as:
[tex]y = mx + b[/tex]
Where m represents the slope/rate
By comparison
[tex]m = -7[/tex]
Hence, the rate (m) is -7
(c) The y-intercept of a linear function
The y-intercept of a linear function is where the x-value is 0
From the table,
y = 6 when x = 0
Hence, the y-intercept (b) is 6
(d) Rate of a linear function
From the table, we have the following ordered pairs
(2,18) and (0,6).
The slope (m) is calculated as:
[tex]m = \frac{y_2 -y_1}{x_2 -x_1}[/tex]
So, we have:
[tex]m = \frac{6 -18}{0-2}[/tex]
[tex]m = \frac{-12}{-2}[/tex]
[tex]m = 6[/tex]
Hence, the slope (m) is 6
(e) Equation of a linear function
From the table, we have the following ordered pairs
(0,-5) and (-3,4).
The slope (m) is calculated as:
[tex]m = \frac{y_2 -y_1}{x_2 -x_1}[/tex]
So, we have:
[tex]m = \frac{4 --5}{-3-0}[/tex]
[tex]m = \frac{9}{-3}[/tex]
[tex]m = -3[/tex]
The equation is then calculated as:
[tex]y = m(x - x_1) + y_1[/tex]
So, we have:
[tex]y = -3(x - 0) -5[/tex]
[tex]y = -3x -5[/tex]
Hence, the linear equation is [tex]y = -3x -5[/tex]
Read more about linear equations at:
https://brainly.com/question/14323743