Which statement completes step 5 of the proof?
у
4
f
3
g
-2
K
L'
-4
-3
-2
-1
0
2
-1
J
-2
-3
-4
Step 1 KL is parallel to the y-axis, and JL is parallel to the x-axis.
Step 2 AJKL was rotated 90° clockwise to create AJ'KL'. Point K did not change position, so it remains point K. Therefore, AJKL - AJ KL.
Step 3 KL is perpendicular to the y-axis, and J'L' is perpendicular to the x-axis.
Step 4 JK lies on line f and has a slope of 3.
Step 5 ?
Step 6 The product of the slopes of JK and J'K is -1; therefore, lines f and g are perpendicular.
KL lies on line g and has a slope of
-
1
JK lies on line g and has a slope of
The weight of a radioactive isotope was 96 grams at the start of an experiment. after one hour, the weight of the isotope was half of its initial weight. after two hours, the weight of the isotope was half of its weight the previous hour. if this pattern continues, which of the following graphs represents the weight of the radioactive isotope over time? a. graph w b. graph x c. graph y d. graph z
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