notice the equations in slope-intercept form, the first one has a slope of -1, the second one has a slope of 1.
if the slopes are equal, and the constant is different, they lines are parallel.
if the slopes are equal, and the constant is the same the equations are exactly the same thing, and the lines are coincident, on slapped on top of the other.
if the slopes differ, like here, then they have a solution, where they
intersect.
Answer: 78 degrees.
Step-by-step explanation: A pair of supplementary angles are a pair of angle that, when both their degree measures are added, equal 180 degrees. When you subtract 102 from 180 then, you get 78 degrees.
78 + 102 = 180
Answer:
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Step-by-step explanation:
Answer:
C
Step-by-step explanation:
Answer:
an expression of more than two algebraic terms, especially the sum of several terms that contain different powers of the same variable(s).
