What is the equation of the line, in slope-intercept form, that contains the points (−1, 5) and (2, 2)?
y = −3x + 4
y = −x + 1
y = x + 4
y = −x + 4

answer: the correct option is d.

explanation:

it is given that the triangle j'k'l' shown on the grid below is a dilation of triangle jkl using the origin as the center of dilation.

from the given graph it is noticed that k(4,8) and k'(2,4). let origin is defined by o and scale factor is defined by k, then

    (1)

distance formula,

put these values in equation (1).

therefore scale factor is     and option d is correct.

  lol