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Mariulka [41]
3 years ago
8

What is the equation for the line?

Mathematics
1 answer:
BlackZzzverrR [31]3 years ago
8 0

Answer:

y = - 2x - 4

Step-by-step explanation:

the equation of a line in slope- intercept form is

y = mx + c ( m is the slope and c the y-intercept )

To calculate m use the gradient formula

m = ( y₂ - y₁ ) / ( x₂ - x₁ )

with (x₁, y₁ ) = (- 2, 0) and (x₂, y₂ ) = (0, - 4) ← 2 points on the line

m = \frac{-4-0}{0+2} = \frac{-4}{2} = - 2

not the line crosses the y-axis at (0, - 4) ⇒ c = - 4

y = - 2x - 4 ← equation of line


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