find the slope of the graph write it as a fraction or whole number not a mixed number. find two points on the line (0,-4) and (3,0) slope = change in y / change in x

Respuesta :

Answer:

The slope of the graph will be:

  • [tex]m=\frac{4}{3}[/tex]

From the attached graph, it is clear that

  • the y-intercept is: (5, 0)          ∵ to find the y-intercept, set x=0
  • the x-intercept is: (0, -4)         ∵ to find the x-intercept, set y=0

Step-by-step explanation:

Given the two points on the line

  • (0, -4)
  • (3, 0)

[tex]\mathrm{Slope\:between\:two\:points}:\quad \mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}[/tex]

[tex]\left(x_1,\:y_1\right)=\left(0,\:-4\right),\:\left(x_2,\:y_2\right)=\left(3,\:0\right)[/tex]

[tex]m=\frac{0-\left(-4\right)}{3-0}[/tex]

[tex]m=\frac{4}{3}[/tex]

Hence, the slope of the graph will be:

[tex]m=\frac{4}{3}[/tex]

We can also find the equation of the line using the point-slope form of the line equation

[tex]y-y_1=m\left(x-x_1\right)[/tex]

substituting the values m = 4/3 and the point (0, -4)

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

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

[tex]y+4=\frac{4}{3}x[/tex]

[tex]y=\frac{4}{3}x-4[/tex]

Therefore, the equation of the line will be:

[tex]y=\frac{4}{3}x-4[/tex]

The graph of the equation line is also attached below.

From the graph, it is clear that

  • the y-intercept is: (5, 0)          ∵ to find the y-intercept, set x=0
  • the x-intercept is: (0, -4)         ∵ to find the x-intercept, set y=0

Ver imagen absor201