Question

Which expression can be used to find the slope of a line containing the points (-3, 2) and (7,-1)?
02-73
ZC-
-1-2
7-(-3)

Answer 1

Answer:

y = $\frac{-3}{10}$x + 1.1

Step-by-step explanation:

m = $\frac{y_{2} - y_{1}}{x_{2} - x_{1} }$

m = $\frac{-1 - 2}{7- -3}$

m = $\frac{-3}{10}$

y - $y_{1}$ = m(x - $x_{1}$)

y - 2 = $\frac{-3}{10}$(x - -3)

y - 2 = $\frac{-3}{10}$x - 0.9

  + 2          + 2

y = $\frac{-3}{10}$x + 1.1 is the slope of the line

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Answer 2

Answer:

m = [ - 1 - 2 ] / [ 7 - ( - 3 ) ]

Step-by-step explanation:

m = gradient / slope of line

m = ( y2 - y1 ) / ( x2 - x1 )

m = [ ( 2 ) - ( - 1 ) ] / [ ( - 3 ) - ( 7 ) ]

m = 3 / - 10

m = - 3 / 10