Answer:
First choice.
Step-by-step explanation:
When you solve the system and somehow get both sides two different value. That means both graphs are oarallel (graph of both equations). When two sides are different, we can say that there are no solutions.
Answer:
Hello,
f(x)=-3x+1, then f^-1(x)= ![\frac{1}{-3x+1}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B-3x%2B1%7D)
have a good day
Step-by-step explanation:
Answer:
Step-by-step explanation:
For the line ax+by=c, solving for y gives ...
y = (-a/b)x +c/b
The slope in this slope-intercept form is the coefficient of x, -a/b. The y-intercept is c/b.
a) For the first line, the slope is ...
-a/b = -(-2)/3 = 2/3
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b) For the second line, the slope is ...
-a/b = -4/1 = -4
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c) The y-intercept of the first line is ...
c/b = 6/3 = 2
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d) The y-intercept of the second line is ...
c/b = 12/1 = 12
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e) The slopes of the lines are different, so there is one (1) solution.
![f(x)=2x^2-x](https://tex.z-dn.net/?f=f%28x%29%3D2x%5E2-x)
Substitute the value of x = -3 to the equation:
![f(-3)=2(-3)^2-(-3)=2(9)+3=18+3=21](https://tex.z-dn.net/?f=f%28-3%29%3D2%28-3%29%5E2-%28-3%29%3D2%289%29%2B3%3D18%2B3%3D21)