Answers
Set 90
- c.Because we do not know if Pam and Sam are hiking up or down,
answer choices aand bare not correct. All we know is that the hills
have the samesteepness but we do not know if that is very steep or
just slightly steep, so choice dis also not appropriate. Since parallel
lines always have the same slope, this is the correct choice. - a.If every step rises 7′′for every 9′′, then the relationship of rise
over distance is ^79 . - a.Since perpendicular lines have slopes that are negative reciprocals
of each other, the slope of line T will be 9. Compared to the slope – 91 ,
this slope is positive and steep. - c.If the ramp rises 3 feet for every 36 feet, then the relationship of
rise over distance is 336 fofeoett. The simplified ratio is 112 fofeoett. - a.The plane’s elevation gain from 6,300 to 24,500 feet is 18,200
feet. Put this rise over the horizontal “run” of 30,000 feet:
^1380 ,, 02 0000 = 1951 0. - b.All vertical lines have an undefined slope.
Set 91
- ^23 .Subtract like coordinates: –2 – 10 = –12. –6 – 2 = –8. Place the
vertical change in distance over the horizontal change in distance:
–– 18 2. Then reduce the top and bottom of the fraction by 4. The
final slope is ^23 . - 5.Subtract like coordinates: –1 – 1 = –2. 0 – 10 = –10. Place the
vertical change in distance over the horizontal change in distance:
––^12 ^0. Then reduce the top and bottom of the fraction by 2. The
final slope is 5.
501 Geometry Questions