Question

Multiple Choice

Look at the graph.

The graph shows a line through the points left parenthesis negative 1 comma negative 2 right parentheses and left parenthesis 2 commas 1 right parenthesis.

The slope of the line is _______.
A. positive
B. negative
C. zero
D. undefined

Answer 1

the slope is POSITIVE (answer A)

Explanation:

The line goes through: (-1, -2) and ( 2, 1)

Then the slope can be calculated as:

slope = (y2 - y1) / (x2 - x1)

in our case:

slope = (1 - -2) / (2 - -1) = (1 + 2) / (2 + 1) = 3 / 3 = 1

Therefore, the slope is POSITIVE (answer A)