gabbyalicorn
  • gabbyalicorn
Which is an equation of the given line in standard form? A. –8x + 9y = 23 B. –8x + 9y = –23 C. –8x + 7y = 25 D. –9x + 8y = –23
Mathematics
  • Stacey Warren - Expert brainly.com
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SOLVED
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schrodinger
  • schrodinger
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gabbyalicorn
  • gabbyalicorn
Agl202
  • Agl202
-8x+9y=23 -- y=8/9x+23/9 (-4,-1), (1/2,3) (3--1)/(1/2--4)= 4/(4 1/2)=.888888889 So answer A because if you rearrange it in y=mx+b form you see it's y=8/9x+23/9. And using the two points provided you can subtract to find the slope which comes out to be 8/9 the only two answers with that are A and B, so eliminate C and D. Then you can easily tell by looking at the graph that the y-intercept is positive, thus answer A is the only answer that works.
gabbyalicorn
  • gabbyalicorn
Okay, thank you.

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