6. a. Name a pair of equations that have exactly one point of intersection. How do you know? b. Name a pair of equations that have no points of intersection. How do you know?

c. Name a pair of equations that have infinite points of intersection. How do you know? No links or I will report!

Which graph represents the equation y =4x

If m∠abc = 70°, what is m∠abd? justify your reasoning.  using the addition property of equality, 40 + 70 = 110, so m∠abd = 110°.  using the subtraction property of equality, 70 − 30 = 40, so m∠abd = 30°.  using the angle addition postulate, 40 + m∠abd = 70. so, m∠abd = 30° using the subtraction property of equality.  using the angle addition postulate, 40 + 70 = m∠abd. so, m∠abd = 110° using the addition property of equality.

Is ofat (-25, 0), (25, 0) co- (0, -15), (0, 15)?