What lengths are proportional to 4.5 and 1.5
1 answer:
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Answer:
3x - y = 4
Step-by-step explanation:
The equation of a line in standard form is
Ax + By = C ( A is a positive integer and B, C are integers )
First find the equation in slope- intercept form
y = mx + c ( m is the slope and c the y- intercept )
Calculate m using the slope formula
m =
with (x₁, y₁ ) = (0, - 4) and (x₂, y₂ ) = (2, 2)
m = =
= 3
Note the line crosses the y- axis at (0, - 4) ⇒ c = - 4
y = 3x - 4 ← in slope- intercept form
Add 4 to both sides
y + 4 = 3x ( subtract y from both sides )
4 = 3x - y, that is
3x - y = 4 ← in standard form