挪威教学笔记数学练习MorePr

Task1:

Marko’steachersetthisquestion:Findtwopointsontheline20x+15y=.

HereisMarko’ssolution:

x-intercept

y-intercept

Lety=0

Letx=0

20x+15(0)=

20(0)+15y=

20x=

15y=

x=/20

y=/15

x=6

y=8

Markosayshehasfoundpoint(6,8).Hashe?Explain.

How

Task2:Isolateyineachequation.

6x+2y=24

42x–14y=21

Task3:Graphthetwoequationsinthisgraph.

Task4:Arestaurantemployssevenserversandthreebartenders.

a.Writeanequationthatshowsallwage

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