Answer: ummm
Step-by-step explanation:
2x=-y+6
-4x+3y=8
Rewriting the equations;
y+2x=6
3y-4x=8
Multiplying equation I by 3;
3y+6x=18
3y-4x=8
Subtracting equation II from equation I;
10x=10
x=1
Replacing for x in the first equation;
2x=-y+6
2(1)=-y+6
2=-y+6
2-6=-y
-4=-y
y=4
Answer:
31. -29
33. -4
Step-by-step explanation:
Rate of change=R∆=(y2-y1)/(x2-x1)=∆y/∆x
(X1,Y1)(X2,Y2)
(1,2)(2,4)
R∆=∆y/∆x
=(4-2)/(2-1)
R∆=2
(2,4)(3,8)
R∆=(8-4)/(3-2)
R∆=4
(3,8)(4,16)
R∆=(16-8)/(4-3)
R∆=8