f(x) = 3x + 3
Solution:
Let us take f(x) = y.
The points indicated in the graph are (0, 3) and (–2, –3).
Slope(m) of the line passing through two points formula:
[tex]$m=\frac{y_2-y_1}{x_2-x_1}[/tex]
Substitute the given points in the above formula,
[tex]$m=\frac{-3-3}{-2-0}[/tex]
[tex]$=\frac{-6}{-2}[/tex]
m = 3
constant is the y-intercept which implies c = 3.
The equation of a line standard form is y = mx + c.
y = 3x + 3
The equation of a line is
f(x) = 3x + 3
