# TODAY IN ALGEBRA 1β¦ Warm Up: Writing expressions

## Presentation on theme: "TODAY IN ALGEBRA 1β¦ Warm Up: Writing expressions"β Presentation transcript:

TODAY IN ALGEBRA 1β¦ Warm Up: Writing expressions Learning Goal: 1.4 You will translate verbal sentences into equations or inequalities Independent Practice β NO A.T.

WARM UP: Turn to page 20 in your textbook
WARM UP: Turn to page 20 in your textbook. Do problems in the MIXED REVIEW, then 1-10 in the QUIZ for Lessons You have 20 minutes to complete these problems, then we will go over then as a class. 60 ππ. 2 7 ππ 2 3.5 π 2 60 16 16 3 7 6.5

WARM UP: Turn to page 20 in your textbook
WARM UP: Turn to page 20 in your textbook. Do problems in the MIXED REVIEW, then 1-10 in the QUIZ for Lessons You have 20 minutes to complete these problems, then we will go over then as a class. 53 6 400 49 19 6.5 7. π¦β7 9. 2π 8. π‘+5 π;\$35

= < β€ > β₯ is equal to the same as is less than fewer than
TRANSLATING VERBAL SENTENCES INTO EQUATIONS: Copy the following table into your notebooks: SYMBOL MEANING ASSOCIATED WORDS = is equal to the same as < is less than fewer than at most, no more than is less than or equal to β€ > is greater than more than is greater than or equal to at least, no less than β₯

PRACTICE: Translate each verbal sentence into an equation or inequality.
Verbal Sentence Equation or Inequality a. The difference of twice a number k and 8 is 12 The product of 6 and a number n is at least 24 The sum of a number y and 5 is no more than 13 2πβ8=12 6πβ₯24 π¦+5β€13

PRACTICE: Translate each verbal sentence into an equation or inequality.
Verbal Sentence Equation or Inequality The sum of twice a number r and 3 is 11 The quotient of a number n and 2 is at most 16 A number q is at least 5 2π+3=11 π 2 β€16 πβ₯5

Therefore 3 IS A SOLUTION to the equation πβππ=π!!
CHECKING FOR POSSIBLE SOLUTIONS: Check whether 3 is a solution of the equation. 8β2π₯=2 Substitute 3 for x β2 3 =2 ??? Multiply 8β6=2 ??? Subtract =2 YES!!!! Therefore 3 IS A SOLUTION to the equation πβππ=π!!

CHECKING FOR POSSIBLE SOLUTIONS PRACTICE: Check whether 3 is a solution of the equation or inequality. a π₯β5=6 4 3 β5=6 ? 12β5=6 ? 7β 6 No, 3 is not a solution b π§+5>12 2 3 +5>12 ? 6+5>12 ? 11β―12 No, 3 is not a solution c πβ€20 5+3(3)β€20 ? 5+9β€20 ? 14β€20 YES! Yes, 3 is a solution

HOMEWORK #4: Pg. 24: 3-8, 12-28 REMINDER: turn in your Student Acknowledgment and Agreement Form! If finished, work on other assignments: HW #1: Pg. 5: 3-12, 15-28, 34 HW #2: Pg. 10: 3-6, 11, 14, 15, 18, 22-26 HW #3: Pg. 18: 3-12, 15-21