anonymous
  • anonymous
The graph of the equation y=-2x+5 will intersect the y-axis when y equals what value?
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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chestercat
  • chestercat
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butterflydreamer
  • butterflydreamer
do you mean y = -2x - 5 as your equation? :)
anonymous
  • anonymous
sorry i ment y=-2x+5
anonymous
  • anonymous
An axis is intersected when the other parameter is zero.

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anonymous
  • anonymous
i think of these as "Y" dont we begin "5"
anonymous
  • anonymous
so ur line starts at +5
butterflydreamer
  • butterflydreamer
oh okay :) So we have the equation y = -2x + 5 To find when it will intersect the y-axis, it meant when will it cut the y-axis? Note the slope-intercept form: y = mx + b where m = slope and b = y-intercept :) So what will the "b" be in your equation y = -2x + 5 ?
anonymous
  • anonymous
@GrinningShadow sometimes it's better to explain the method so they can learn a method instead of just getting the answer
butterflydreamer
  • butterflydreamer
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butterflydreamer
  • butterflydreamer
are you still confused? :) Another method to find the y-intercept is that... we know the y-intercept occurs when x = 0. Therefore for your equation y = -2x + 5. Plug in x = 0 (this means where you see "x" in the equation, replace it with 0) and we get: y = -2(0) + 5 y = ? ^This will be your y-intercept
anonymous
  • anonymous
got it thanks @butterflydreamer
butterflydreamer
  • butterflydreamer
oh excellent :) No worries!!

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