Answer:
f(6) = - 75 , g(- 5) = - 8
Step-by-step explanation:
substitute x = 6 into f(x) , that is
f(6) = - 2(6)² - 3 = - 2(36) - 3 = - 72 - 3 = - 75
substitute x = - 5 into g(x) , that is
g(- 5) = 2(- 5) + 2 = - 10 + 2 = - 8
They are equivalent because 4:5 can both be multiplied by 2 making 8:10.
Answer:
single solution : (4 ; 6)
Step-by-step explanation:
hello :
4x-y=10.....(1)
y=2x-2.....(2)
put the value for y in (1) :
4x-(2x-2)=10
4x-2x +2 = 10
2x=8
x=8/2 =4
but : y = 2x-2
so : y =2(4)-2=6
single solution : (4 ; 6)