I) f(2)=1.5
ii) f(x)=0 ⇒ x=1.2
iii) k=-1
iv) x=1 ⇒ f(x)=1
Answer:
1
0.8
0.4
Step-by-step explanation:
y = 5x
Substituting '5':
5 = 5x
x = 5/5
x = 1
Substituting 4:
4 = 5x
x = 4/5
x = 0.8
Substituting 2:
2 = 5x
x = 2/5
x = 0.4
Answer:
y = 3.6x + 28
Step-by-step explanation:
y = Mx + c
64 = 3.6(10) + c
64 = 36 + c
64 - 36 = c
28 = c
Answer:
(B.) -7k+21
Step-by-step explanation:
Your first step should be to solve your original expression.
-7×6=-42
-7x-3=21.
You're finishing numbers are -42 and 21.
-7k can equal to -42 if k is 6.
So we can use -7k
Since -7x-3=21, Then the answer would have to be:
-7k+21.