Question

7. Write the equation of a line that passes through (3, 2) and is parallel to the line y = - 2x + 1

Answer 1

y = -2x + 8

Explanation:

parallel lines have the same gradient so the equation would be
y = -2x + c
to find c, substitute the x and y values with the coordinates given:

2 = -2(3) + c

2 = -6 + c
(add 6 to both sides)

8 = c
therefore the equation is

y = -2x + 8