Asked by Love
y = −2x − 3
y = −2x + 2
Are the graphs of the two lines intersecting lines, the same line, or parallel lines? Explain your reasoning.
How many solutions does the system have? Explain how you can tell without solving the system.
y = −2x + 2
Are the graphs of the two lines intersecting lines, the same line, or parallel lines? Explain your reasoning.
How many solutions does the system have? Explain how you can tell without solving the system.
Answers
Answered by
Love
Solve the system using any method. Show your work.
{3x − 2y = 10
−1.5x + y= 5
{3x − 2y = 10
−1.5x + y= 5
Answered by
R_scott
1st
lines are parallel ... slopes are the same ... y-intercepts are different
... no solutions
2nd
multiplying the 2nd equation by -2 gives ... 3x - 2y = -10
... same result as 1st problem
lines are parallel ... slopes are the same ... y-intercepts are different
... no solutions
2nd
multiplying the 2nd equation by -2 gives ... 3x - 2y = -10
... same result as 1st problem
Answered by
Google Official
All you have to do is look at the slopes of the two lines.
the first one has slope of 3
the 2nd has a slope of -1
So they clearly must intersect.
the first one has slope of 3
the 2nd has a slope of -1
So they clearly must intersect.
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