The figure below shows a line graph and two shaded triangles that are similar: a line is shown on a coordinate grid. the x-axis values are from negative 15 to positive 15 in increments of 3 for each grid line. the y-axis values are from negative 5 to positive 5 in increments of 1 for each grid line. the line passes through the ordered pairs negative 12, 4, and 0, 0, and 12, negative 4. a shaded right triangle is formed so that its hypotenuse is from ordered pair 0, 0 labeled as o to 6, negative 2 labeled as a, one leg is from 0, 0 to 0, negative 2, and the second leg is from 0, negative 2 to 6, negative 2. another shaded right triangle is formed with the hypotenuse from 6, negative 2 to 9, negative 3 labeled as b, one leg is from 6, negative 2 to 6, negative 3, and the second leg is from 6, negative 3 to 9, negative 3. which statement about the slope of the line is true? a. it is fraction negative 1 over 3 throughout the line. b. it is −3 throughout the line. c. the slope from point o to point a is fraction 1 over 3 times the slope of the line from point a to point b. d. the slope from point o to point a is three times the slope of the line from point a to point b.