Question

Find the y intercept of the following line (-2,1) and (1, 2.5)

Answer 1

Answer:

2

Step-by-step explanation:

(-2 , 1) ; (1, 2.5)

Slope = $\frac{y_{2}-y_{1}}{x_{2}-x_{1}}$

         $\frac{2.5-1}{1-[-2]}\\\\= \frac{1.5}{1+2}\\\\=\frac{1.5}{3}\\\\= 0.5$

m =0.5

y -y1 =m(x -x1)

y - 1 = 0.5(x - [-2])

y - 1 = 0.5(x + 2)

y -1 = 0.5x + 0.5*2

y - 1 =0.5x + 1

  y = 0.5x + 1 + 1

 y = 0.5x + 2

y-intercept = 2