Choose the best scale for the axes for x = 10, 20, and 30

  • Thread starter dr_pooool
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  • #1
I need help!!!

I am practicing out of my book and this problem is killing me.

Given the following equation, choose the best scale for the axes for x = 10, 20, and 30

y = 2x – 3



A) x-axis: from 0 to 80, intervals every 20; y-axis: from 0 to 40, intervals every 10.
B) x-axis: from 0 to 15, intervals every 10; y-axis: from 0 to 40, intervals every 20
C) x-axis: from 0 to 40, intervals every 10; y-axis: from 0 to 80, intervals every 10
D) x-axis: from 20 to 40, intervals every 5; y-axis: from 27 to 80, intervals every 40
 

Answers and Replies

  • #2
HallsofIvy
Science Advisor
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For each of A, B, C, D, see what y is for the smallest and largest given values of x. Are those values included in the suggested values for y?
 
  • #3
I am not sure of what you are asking? Can you please elaborate.
 
  • #4
FZ+
1,599
3
Work out the x and y coordinates for each of the values of x you are given, and think how much detail you want to just fit them, and have the right resolution.
 

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