The slope for the question is -1.5
Y = x
when x < -1
not equal to (≤) so no solid circle.
plot points
x | y
-1, -1
-2, -2
-3, -3
Next one is...
y = -x
when x ≥ -1
solid circle for equal to
look at points
x | y
-1, 1
0, 0
1, -1
2, -2
As you can see it's the last graph in bottom right corner.
Answer:
2.5/3
Step-by-step explanation:
Y would be 3 then.
Beacuse the equation is y=Mx+c
So if you substitute the values it will be
y=2(0)+3
Y=0+3
Y=3
The answer would be infinitely many solutions if your system is y = 2x - 5, -8x + 4y = -20. The answer would be (5/2, 0) if your system is y = 2x - 5, -8x - 4y = -20.
y = 2x - 5
-8x + 4y = -20
-8x + 4(2x - 5) = -20
-8x + 8x - 20 = -20
-20 = -20
True, so this system has infinitely many solutions.
__________________________________________________________
y = 2x - 5
-8x = 4y = -20
-8x - 4(2x - 5) = -20 -8(2.5) - 4y = -20
-8x - 8x + 20 = -20 -20 - 4y = -20
-16x + 20 = -20 + 20 + 20
- 20 - 20 ------------------------
-------------------------- -4y = 0
-16x = -40 ------ ----
-------- -------- 4 4
-16 -16
y = 0
x = 2.5
The final solution for this system is (2.5, 0) or (5/2, 0).