Understanding Straight Line Graphs

Front

Equation of a straight line

Back

y = mx + c

Front

Y-intercept

Back

Point where line crosses y-axis

Front

X-intercept

Back

Point where line crosses x-axis

Front

Positive slope

Back

Line rises from left to right

Front

Negative slope

Back

Line falls from left to right

Front

Slope of line y = 3x + 2

Back

m = 3

Front

Y-intercept of line y = -2x + 5

Back

c = 5

Front

Find slope: (1, 2) to (3, 6)

Back

m = 2

Front

Find midpoint: (2, 3) and (4, 7)

Back

(3, 5)

Front

Find length: (0, 0) to (3, 4)

Back

5 units