Answered

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2x + y= -1
y=ax?
10. For the system of equations above, what must be
true about the value of a if the system has no
solutions?

Sagot :

Answer:

a = -2

Step-by-step explanation:

The graphs of the lines would have to be parallel.  So they must have the same slope.   2x + y = -1 changed to slope-intercept form is y = -2x - 1.  Therefore, the slope of that line is -2.   y = ax is in slope-intercept form where the slope is a.  So, a must equal -2.

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