Krystina is trying to derive the slope of a line with coordinates (6,−2)
and (0,8)
using the formula ΔyΔx=y2−y1x2−x1
.
Krystina says the slope is −35
because slope =riserun=x2−x1y2−y1=0−68−(−2)=−68+2=−610
.
Is Krystina’s calculation for slope correct? If not, what is an appropriate explanation for why she is incorrect?
(1 point)
Responses
Krystina is incorrect because she calculated the change in x over the change in y.
Krystina is incorrect because she calculated the change in x over the change in y.
Krystina is incorrect because she calculated the change in y over the change in x.
Krystina is incorrect because she calculated the change in y over the change in x.
Krystina is correct because she calculated the change in x over the change in y.
Krystina is correct because she calculated the change in x over the change in y.
Krystina is correct and she simplified the slope correctly.
Krystina is correct and she simplified the slope correctly.
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