BioHazard9064
  • BioHazard9064
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Mathematics
  • Stacey Warren - Expert brainly.com
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schrodinger
  • schrodinger
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
BioHazard9064
  • BioHazard9064
The equation below represents Function A and the graph represents Function B: Function A f(x) = -2x + 1 Function B graph of line going through ordered pairs negative 1, negative 5 and 2, 1 and 3, 3 Which equation best compares the slopes of the two functions? Slope of Function B = 2 × Slope of Function A. Slope of Function A = Slope of Function B Slope of Function A = 2 × Slope of Function B Slope of Function B = - Slope of Function A
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anonymous
  • anonymous
Find the slope of the second one with \[\large \bf m~=~\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\]
BioHazard9064
  • BioHazard9064
How would I do that?

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anonymous
  • anonymous
Choose two sets of coordinates. For example, (2,1) and (3,3). \[\large \bf (2,1)~=~(x_{1},y_{1})\]\[\large \bf (3,3)~=~(x_{2},y_{2})\] Now plug them into the formula \[\large \bf m~=~\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\]
BioHazard9064
  • BioHazard9064
how ?sorry Im really bad I missed this in school thats why I got to do it now
anonymous
  • anonymous
What is \(\large \bf x_{1}\) ?
BioHazard9064
  • BioHazard9064
2?
anonymous
  • anonymous
Yeah. So what would the others be?
BioHazard9064
  • BioHazard9064
y1 would be 1 x2 whould be 3 and y2 yould be 3?
anonymous
  • anonymous
Correct. Now can you plug those points into the formula now? \[\large \bf m~=~\frac{y_{2}-y_{1}}{x_{2}-x_{1}}\]
BioHazard9064
  • BioHazard9064
3 - 1 m=-------------- 3 - 2
anonymous
  • anonymous
Correct. Which would simplify to?
BioHazard9064
  • BioHazard9064
2,1?
anonymous
  • anonymous
\[\large \bf m~=~\frac{2}{1}~=~2\]
BioHazard9064
  • BioHazard9064
ok
BioHazard9064
  • BioHazard9064
I get that part now
anonymous
  • anonymous
So the slope of Function A is -2 and the slope of Function B is 2. So which of the answer choices would make sense?
BioHazard9064
  • BioHazard9064
A
anonymous
  • anonymous
\[\bf Slope~of~function~A~=~-2\]\[ \bf Slope~of~function~B~=~2\] So answer choice A is saying \[\large \bf 2~=~-2 \times 2\] Does that sound right?
BioHazard9064
  • BioHazard9064
No
anonymous
  • anonymous
So answer choice A can't possibly be correct. Now then, it has to be B, C or D.
BioHazard9064
  • BioHazard9064
B is out cause they aren't equal
anonymous
  • anonymous
Yep.
BioHazard9064
  • BioHazard9064
So then D looks the best because its saying B = - A
anonymous
  • anonymous
Correct :)
BioHazard9064
  • BioHazard9064
thanks for showing me how to do it instead of just the answer
anonymous
  • anonymous
\[\huge \color{aqua}N\color{fuchsia}o \space \color{lime}P \color{orange}r \color{blue}o \color{maroon}b \color{red}l \color{olive}e \color{purple}m \ddot\smile \]

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