What is the equation of the line passing through the points (2, –1) and (5, –10) in slope-intercept form?

Respuesta :

slope intercept is m and m=-3
y intercept is b and b=5

Answer:

The  equation of the line passing through the points (2, –1) and (5, –10) is y = -3x + 5 .

Step-by-step explanation:

The equation of a slope is given by

[tex](y - y_{1}) = \frac{y_{2}-y_{1}}{x_{2}-x_{1}}(x - x_{1})[/tex]

As the line passing through the points (2, –1) and (5, –10) .

Put all the values in the above

[tex](y - (-1)) = \frac{-10-(-1)}{5-2}(x - 2)[/tex]

[tex](y + 1) = \frac{-10+1 }{5-2}(x - 2)[/tex]

[tex](y + 1) = \frac{-9}{3}(x - 2)[/tex]

3y + 3 = -9x -9 × -2

3y + 3 = -9x + 18

3y = -9x + 18 -3

3y = -9x + 15

Simplify the above

3y = 3 (-3x + 5)

y = -3x + 5

Therefore the  equation of the line passing through the points (2, –1) and (5, –10) is y = -3x + 5 .