kaylaprincess
  • kaylaprincess
help me with quadratics? (x+3)(x-3) x = 3 y = -9 I have graphed. i just dont understand : describe if the average rate of change is increasing or decreasing, from left to right. Justify your observations with calculations. like how do i do/start this?
Mathematics
  • Stacey Warren - Expert brainly.com
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katieb
  • katieb
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kaylaprincess
  • kaylaprincess
im so confused, i really need help understanding this.
kaylaprincess
  • kaylaprincess
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kaylaprincess
  • kaylaprincess
my work

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anonymous
  • anonymous
what is it asking in the book?
kaylaprincess
  • kaylaprincess
explain whether the average rate of change is increasing or decreasing, from left to right. Justify your observations by comparing the slopes calculated between at least three different pairs of points.
anonymous
  • anonymous
ohhhh
anonymous
  • anonymous
u just take 2 points for example
anonymous
  • anonymous
when x=3 and when x=0
anonymous
  • anonymous
look at the graph when x=0...its is at -9....when x=3...it is at 0....if u follow the line it is increasing between those points
anonymous
  • anonymous
and u then u take another set of points and do the same
anonymous
  • anonymous
yea but its asking explain the situation between points
anonymous
  • anonymous
so if we took when x=3 and when x=0
anonymous
  • anonymous
it would be decreasing
anonymous
  • anonymous
oh kk
kaylaprincess
  • kaylaprincess
im so confused...
kaylaprincess
  • kaylaprincess
gras can you help me?
kaylaprincess
  • kaylaprincess
dude, chill, i have two people spewing information at me ! @Crazyandbeautiful
anonymous
  • anonymous
make a table for that equations plug in x-values -4 through -3...the y values should be decreasing
anonymous
  • anonymous
whereas if u plug in a different set of values they increase like from x=0,x=1,x=2,x=3...y values for these are -9,-8,-5...they are increasing
anonymous
  • anonymous
x=-4,x=-3,x=-2 y values:7,0,-5 therefore decreasing
anonymous
  • anonymous
why do we have some increasing and some decreasing?
anonymous
  • anonymous
its because it is a parabola
anonymous
  • anonymous
it has a loop...so they just want u to pick 3 pairs of point and establish the flow: is it increasing?decreasing?
kaylaprincess
  • kaylaprincess
thank you!
kaylaprincess
  • kaylaprincess
the flow is decreasing?
kaylaprincess
  • kaylaprincess
@Grasberk

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