Question

What is the equation of the line that passes through the points (-2, 3) and (2, 7)?

x - y = -1

x - y = -2

x - y = - 5

x - y = - 6

Answer 1

What have you tried to get this?

Answer 2

If you find the slope, you can use the slope and one point to define the line.

Answer 3

m = (y2 - y1)/ (x2 - x1) -- m is the slope...set 1(-2,3)..set 2 (2,7)
m = (7 - 3) / (2 - (- 2)
m = 4/4 = 1
slope is 1

y - y1 = m(x - x1) ....I am using points (-2,3)
y - 3 = 1(x - (-2)
y - 3 = 1x + 2
y = 1x + 2 + 3
y = x + 5
x - y = -5