checkmeee
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  • 02-12-2018
  • Mathematics
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What function is represented by the graph?

What function is represented by the graph class=

Respuesta :

jimrgrant1 jimrgrant1
  • 02-12-2018

Answer:

A

Step-by-step explanation:

The equation of the horizontal line is y = 4 : x ≥ 0

the equation of the oblique line, since it passes through the origin is of the form

y = mx ( m is the slope )

to calculate m use the gradient formula

m  = ( y₂ - y₁ ) / (x₂ - x₁ )

with (x₁, y₁ ) = (0, 0) and (x₂, y₂ ) = (- 1, - 2 ) ← 2 points on the line

m = [tex]\frac{-2-0}{-1-0}[/tex] = [tex]\frac{-2}{-1}[/tex] = 2

y = 2x : x < 0



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