SECONDARY MATH I // MODULE 4
SOLVING EQUATIONS AND INEQUALITIES – 4.3
Mathematics Vision Project
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4.3
READYTopic:SolvingInequalities.
Usetheinequality−9 < 2tocompleteeachrowinthetable.Applyeachoperationtotheoriginalinequality−9 < 2
Result Istheresultinginequalitytrueorfalse?
Example:Add3tobothsides -9+3<2+3→-6<5 True1.Subtract7frombothsides. 2.Add15tobothsides. 3.Add-10tobothsides. 4.Multiplybothsidesby10. 5.Dividebothsidesby5. 6.Multiplybothsidesby-6. 7.Dividebothsidesby-3. 8.Whatoperationswhenperformedonaninequality,reversetheinequality?(Beveryspecific!)
SETTopic:Solveliteralequationsthatrequiremorethanonestep.Solvefortheindicatedvariable.Showyourwork!!!
9.Solveforh. ! = 25!ℎ
10.Solveforh. ! = !!!ℎ
11.Solveform.! = 7! + 6
12.Solveform.! = !" + !
13.Solveforz. ! = ! + 7 3
14.Solveforz. ! = ! + 7 !
15.Solveforx.!!!! = 4
16.Solveforx.!!!!! = 4
17.Solveforx. !!! − 9 = 6
18.Solveforx.!!! − 9! = 6
19.Solveforx.!! ! − 2 = 12 20.Solveforx. !! ! − 2! = 12
READY, SET, GO! Name PeriodDate
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SECONDARY MATH I // MODULE 4
SOLVING EQUATIONS AND INEQUALITIES – 4.3
Mathematics Vision Project
Licensed under the Creative Commons Attribution CC BY 4.0
mathematicsvisionproject.org
4.3
GOTopic:Identifyingx-interceptsandy-intercepts
Locatethex-interceptandy-interceptinthetable.Writeeachasanorderedpair.21.
! !-4 12
-3 10
-2 8
-1 6
0 4
1 2
2 0
22.
! !0 -6
3 -5
6 -4
9 -3
12 -2
15 -1
18 0
23.
! !-3 10
-2 8
-1 6
0 4
1 2
2 0
3 -2
x–intercept:
y–intercept:
x–intercept:
y–intercept:
x–intercept:
y–intercept:
Locatethex-interceptandthey-interceptinthegraph.Writeeachasanorderedpair.
24.
25.
x–intercept:
y–intercept:
x–intercept:
y–intercept:
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SECONDARY MATH I // MODULE 4
SOLVING EQUATIONS AND INEQUALITIES – 4.3
Mathematics Vision Project
Licensed under the Creative Commons Attribution CC BY 4.0
mathematicsvisionproject.org
4.3
Solveeachequationforx.Providethejustificationsforeachstep.Seethefirstexampleasareminderforthetypesofjustificationsthatmightbeused.Example: 26.
27. 28.
29. 30.
31. 32.
4x–10=2 Justification
3x–6=15 Justification+6+6
3x=2133x=7
AdditionPropertyofequalityDivisionPropertyofequality
6–2x=10 Justification
–16=3x+11 Justification
6x+3=x+18 Justification
3x–10=2x+12 Justification
12x+3y=15 Justification
X(B+7)=9 Justification
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