Find the equation of the line that passes through the given points. Write the equation in slope-intercept form.
(-2.7) and (-1,5)

Respuesta :

Answer:

The equation in the slope-intercept form will be:

  • y = -2x + 3

Step-by-step explanation:

Given the points

  • (-2, 7)
  • (-1, 5)

Finding the slope between the points

[tex]\mathrm{Slope}=\frac{y_2-y_1}{x_2-x_1}[/tex]

[tex]\left(x_1,\:y_1\right)=\left(-2,\:7\right),\:\left(x_2,\:y_2\right)=\left(-1,\:5\right)[/tex]

[tex]m=\frac{5-7}{-1-\left(-2\right)}[/tex]

[tex]m=-2[/tex]

We know that the slope-intercept of line equation is

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

where m is the slope and b is the y-intercept

substituting m = -2 and the point (-2, 7) to find the y-intercept 'b'

y = mx+b

7 = -2(-2) + b

7 = 4 + b

b = 7-4

b = 3

so the y-intercept = b = 3

substituting m = -2 and b = 3 in the slope-intercept form of line equation

y = mx+b

y = -2x + 3

Thus, the the equation in the slope-intercept form will be:

  • y = -2x + 3