Graph Straight Lines

Question 1

Parallel lines have ……. Gradient

Answer 1

Same

Question 2

Perpendicular lines have ….. Gradient

Answer 2

Multiply to make -1

Take the Negative reciprocal

Question 3

Midpoints

Answer 3

(x1 + x2) , (y1 + y2)

2 2

Question 4

y=mx+c

Answer 4

m is gradient
c is y intercept
To get x intercept, y=0

Question 5

(x-x1)m = y-y1

Answer 5

Useful equation

Question 6

Gradient =

Answer 6

Change in y / change in x