The answer is:
y = 5x - 5
Work/explanation:
When finding a line's equation, we make the decision about which form of the equation we should choose. We choose the right form based on the pieces of information that we're given.
Here are the 3 forms :
Form :

Form :

Given : The slope and the y-intercept
Where : m = slope and b = y intercept
Form :

Given : The slope and a point on the line
Where : m = slope and (x₁, y₁) is a point
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Given the slope and the y intercept, we know that the right form is slope intercept.
Having plugged in the data, we see that the answer is
, or
.
Hence, the answer is y = 5x - 5.