Question

The graph plots four equations, A, B, C, and D:

Line A joins ordered pair negative 6, 16 and 9, negative 4. Line B joins ordered pair negative 2, 20 and 8, 0. Line C joins ordered pair negative 7, negative 6 and 6, 20. Line D joins ordered pair 7, 20 and 0, negative 7.

Which pair of equations has (2, 12) as its solution?

Equation A and Equation C
Equation B and Equation C
Equation C and Equation D
Equation B and Equation D

Answer 1

a and c

Answer 2

The answer is B and C because they cross at a point on the graph.