Answer:
A- She is incorrect because systems may have only complex solutions which are not visible on the graph
Step-by-step explanation:
Just took the test on edge 2020
Answer:
![x ∈ R,a=1](https://tex.z-dn.net/?f=x%20%E2%88%88%20R%2Ca%3D1)
Step-by-step explanation:
i believe this is the answer but i am not 100% sure
3(-12)-17= 3 times -12 is -36
-36-17= -53
If you graph y=7x-9 and y=3x-1 the two lines will intersect at one point. That is how you graphically "solve" the system of equations.
Both of these lines are of the form y=mx+b where m is the slope and b is the y-intercept.
So for y=7x-9, the slope is 7 and the y-intercept is -9
For y=3x-1, the slope is 3 and the y-intercept is -1
....
The solution for this system occurs when both coordinates are equal to each other so we can say:
7x-9=3x-1 subtract 3x from both sides
4x-9=-1 add 9 to both sides
4x=8 divide both sides by 4
x=2, making y=3x-1 become:
y=3(2)-1=6-1=5, so the solution to the system of equations is:
(2,5)