Krystina is trying to derive the slope of a line with coordinates (6,−2)

Question

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.
Skip to navigation

Answer 1

Krystina is incorrect because she calculated the change in x over the change in y.