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Which of the following are point-slope equations of the line going through (-3, 4) and (2, 1)? Check all that apply.

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1 Answer

Hi Maria;
The point-slope equation is...
y-y1=m(x-x1)
m=slope
To complete point-slope formula, we would input one set of coordinates.
(-3, 4) and (2, 1)
FIRST SET...
y-4=m(x--3)
y-4=m(x+3)
 
SECOND SET
y-1=m(x-2)
 
I am having a hard time interpreting your pasted copy of the possible answers.  However, I can see that the slope is considered negative in all but the last answer.
Slope is defined as change-of-y divided by change-of-x...
m=(y-y1)/(x-x1)
(-3, 4) and (2, 1)
m=(4-1)/(-3-2)
m=3/-5
m=-3/5
It is a negative number.
 
I would like to provide more help and select which are the correct answers.  I cannot.  Please let me know if you need more help.