The graph of y=x^{2}+2 x-15 intersects the x-axis at points A and C and the y-axis at point B. What is \tan (\angle A B C) ?
Answer Choices
A. \dfrac{1}{7}
B. \dfrac{1}{4}
C. \dfrac{3}{7}
D. \dfrac{1}{2}
E. \dfrac{4}{7}
The graph of y=x^{2}+2 x-15 intersects the x-axis at points A and C and the y-axis at point B. What is \tan (\angle A B C) ?
Answer Choices
A. \dfrac{1}{7}
B. \dfrac{1}{4}
C. \dfrac{3}{7}
D. \dfrac{1}{2}
E. \dfrac{4}{7}