Step-by-step explanation:
(300-60)/6,4=37,5
Add the 2 equations together
y = -x+1
y =3x+1
========
2y = 2x+2
divide by 2
y = x+1
y = x+1
y = -x+1
======= add these two equations together
2y = 2 divide by 2
y = 1
y = x+1
1 = x+1
x=0
3x+y=3(0) +1=1
Answer =1
Step-by-step explanation:
-4.5x -2y = -12.5 -------(1)
3.25x -y = -0.75 --------(2)
From (2) we can make y the subject of the relation
y = 0.75+3.25x -------(3)
Input 0.75+3.25x into y in (1)
-4.5x -2(0.75+3.25x) = -12.5
-4.5x -1.5- 6.5x = -12.5
-4.5x -6.5x -1.5 = -12.5
-11x = -12.5 +1.5
-11x = -11
x = 11/11
x = 1
If x = 1,substitute 1 into x in (3)
y = 0.75+3.25x
y = 0.75 +3.25(1)
y = 0.75 +3.25
y = 4
x = 1,y = 4
Y= -2x+6
Your slope is negative 2, as provided.
Your Y-intercept would (0, 6)
Let me know if this helps :)
