anonymous
  • anonymous
What is the equation of the line that passes through the points (-2, 1) and (1, 10)? 3x - y = -7 3x - y = -5 3x - y = 5 x + 3y = -5
Algebra
  • Stacey Warren - Expert brainly.com
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SOLVED
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
do you know how to do point slope?
anonymous
  • anonymous
A little. If I am given an equation I can solve it but I am not sure what they are asking in this.
Zale101
  • Zale101
use the equation y=mx+b m=slope b=y-intercept

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More answers

anonymous
  • anonymous
y - 10 = 3x (x - 1)
anonymous
  • anonymous
if you use the quation m= y2-y1 over x2-x1 you will get the slope
Zale101
  • Zale101
does this formula seem familiar to u y=mx+b?
Zale101
  • Zale101
@MiaS
anonymous
  • anonymous
I know y = mx + b but not @melody16 s
Zale101
  • Zale101
Can you plug in the numbers for me? (-2, 1) and (1, 10)
Zale101
  • Zale101
Do you know how to do that?
anonymous
  • anonymous
To find the equation we have : (-2, 1) and (1, 10)? \[y=mx+b\] where m is the slope. We can calculate m by : \[m=\frac{y_2-y_1}{x_2-x_1}=\frac{10-1}{1-(-2)}=3\] To find : b since (1,10) is from the line then : \[10=3\times 1+b\Rightarrow b=10-3=7\] So : \[y=3x+7\]
anonymous
  • anonymous
What numbers do I plug in? Do I find slope on graph paper first to get y intercept?
anonymous
  • anonymous
or you could pick a coordinate and plug in the x and y in the slope intercept form to get b
Zale101
  • Zale101
@Noura11 did everything
anonymous
  • anonymous
Is my answer A
anonymous
  • anonymous
and what does V ∩ (~H ∩ ~ M) mean. I do not recognize it but it is a question
anonymous
  • anonymous
What is your last equation exactly ?
anonymous
  • anonymous
Also. is y = mx + b slope intercept form
anonymous
  • anonymous
Campbell Music Academy held workshops on classical music composers Mozart, Vivaldi, and Haydn. The Venn diagram shows the number of seniors who chose to attend workshops on each of the three composers. If the total number of seniors in the academy is 64, what is the total number of students who belong to the set V ∩ (~H ∩ ~ M)? 45 33 19 15
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anonymous
  • anonymous
well, b is the y-intercept m is the slope y = mx + b has both of these in it hence, it is slope-intercept form ;)
anonymous
  • anonymous
Thanks, @funinabox
anonymous
  • anonymous
y=mx+b slope intercept ax+bx = c standard form y-y1 = m (x-x1) point slope form
anonymous
  • anonymous
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anonymous
  • anonymous
So what Is it that they are asking. I do not understand it with three numbers. Do I need whatever is not in h or m and only v
anonymous
  • anonymous
You want anything that is NOT in H, NOT in M, but IS in V.
anonymous
  • anonymous
so 15
anonymous
  • anonymous
Good job!
anonymous
  • anonymous
Thanks

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