(10)x= -7_______(i)
3x-5y= -16____(ii)
put value of x in (ii) then we have:-
3x-5y= -16
3(-7)-5y= -16
-21-5y= -16
-5y = -16+21
-5y = 5
y = 5/-5= -1
y= -1
(11)
Answer:
x = 3/4
Step-by-step explanation:
f(x) = -2×2 +4x +1
f(x) = -4 +4x +1
f(x) = 4x -3
3 = 4x
3/4 = x
x= 3/4
Answer:
y=-2/7x-4/7
Step-by-step explanation:
m=(y2-y1)/(x2-x1)
m=(4-(-2))/(-16-5)
m=(4+2)/(-21)
m=6/-21
m=-6/21
y-y1=m(x-x1)
y-(-2)=-6/21(x-5)
y+2=-6/21x+30/21
y=-6/21x+30/21-2
y=-6/21x+30/21-42/21
y=-6/21x-12/21
simplify
y=-2/7x-4/7
To get back on track on start off good with the new year
Step-by-step explanation:
m=-4
(0,-5)
y=mx+b
-5=-4(0) +b
-5=b
y=-4x-5