in plain and short, is just their product.
now, let's convert the mixed fractions to "improper" firstly, and then multiply.

Answer:
y=4x-8.5
Step-by-step explanation:
Use point- slope form, since you are given one point and one slope.
y-y₁=m(x-x₁)
Plug coordinates and slope in.
y-(-1/2)=4(x-2)
Solve
y+1/2=4x-8
y=4x-8.5
Answer:
Step-by-step explanation:
lol