Question

Find the equation of the following lines, linear equation should be written in the slope- intercept form.

a. Which is parallel to a line with slope 2, and passes through the ponit (-1,4)
b. Which cuts the x-axis at 5 and the y-axis at -2
c. Which is perpendicular to a line with gradient -2, and passes through (-2,3).

Answer 1

(a) slope m through (h,k) is y-k = m(x-h)

(c) intercept form of a line: x/a + y/b = 1
(c) see (a), but use slope -1/(-2) = 1/2

review the topic some more.