navaethan901
navaethan901 navaethan901
  • 26-02-2018
  • Mathematics
contestada

what is the y-intercept for the equation -2x + 5y = -10

A. (0,5)
b. (0,-5)
c. (0,2)
d. (0,-2)

Respuesta :

thansen2000p3hrrb thansen2000p3hrrb
  • 26-02-2018
-2x+5y=-10 can be rewritten as 
y=2/5x-2
therefore the y intercept is (0,-2) because in the equation y=mx+b, b is the y intercept and -2= b in this equation.
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Yare19
Yare19 Yare19
  • 26-02-2018
To find the y-intercept you have to covert -2x+5y=-10 into mx + b form. To do this you solve for y. For the first step, you add 2x to both sides. The 2nd step, you divide both sides by 5. The finial answer is y= 2/5x-2 which makes -2 your y-intercept since it intersects on the y axis. The answer is (0,-2)
Answer Link

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