Answer:
y = 3x - 5
Step-by-step explanation:
Point-slope form: y - y₁ = m(x - x₁)
Substitute the values for the variables.
y - 7 = 3(x - 4)
y - 7 = 3x - 12
y = 3x - 5
1,2,5 are the answers I think. I hope this helped

1) Substitution from definition.
2) We use 
3) We are changing the order of 3 and
.
4) We add 1 and 3
and we get 
5) Substitution from definition (but the other way than at the beginning).
Answer:
The Expression h(-7) represents the output of h corresponding to the input of -7
Step-by-step explanation: