1 / 17

Evaluate Expressions

Evaluate Expressions. Lesson 14.2. Vocabulary Terms. Terms = parts of an algebraic expression that are separated by an addition or subtraction sign. 6x + 3y Like terms = terms that have the same variable raised to the same power. 5x 2 + 4x 2. Computer Lab Problem.

christopher-anania
Download Presentation

Evaluate Expressions

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Evaluate Expressions Lesson 14.2

  2. Vocabulary Terms • Terms = parts of an algebraic expression that are separated by an addition or subtraction sign. • 6x + 3y • Like terms = terms that have the same variable raised to the same power. • 5x2 + 4x2

  3. Computer Lab Problem • There are 24 computers in the lab. A total of three groups of students come to the lab and 2 students sit at each computer. If each group has the same number of students, how many students are in each group?

  4. Computer Lab Problem • There are 24 computers in the lab. A total of three groups of students come to the lab and 2 students sit at each computer. If each group has the same number of students, how many students are in each group? • C = computers, s = students, g= groups

  5. Computer Lab Problem • There are 24 computers in the lab. A total of three groups of students come to the lab and 2 students sit at each computer. If each group has the same number of students, how many students are in each group? • c = computers, s = students, g= groups • c times s divided by g = # of students

  6. Computer Lab Problem • There are 24 computers in the lab. A total of three groups of students come to the lab and 2 students sit at each computer. If each group has the same number of students, how many students are in each group? • c = computers, s = students, g= groups • c times s divided by g = # of students • 24(2)/3 =

  7. Computer Lab Problem • There are 24 computers in the lab. A total of three groups of students come to the lab and 2 students sit at each computer. If each group has the same number of students, how many students are in each group? • c = computers, s = students, g= groups • c times s divided by g = # of students • 24(2)/3 = 16 • There are sixteen students in each group

  8. School Food • Ricardo runs the concession stand at school. s = sales, c = cost of food products, a = advertising costs. • During the month of November, Ricardo spent $327 on food products and $50 on advertising for the concession stand. The sales were $349. How much money did the concession stand make or lose in November?

  9. School Food During the month of November, Ricardo spent $327 on food products and $50 on advertising for the concession stand. The sales were $349. How much money did the concession stand make or lose in November? s - c - a = profit/loss

  10. School Food • During the month of November, Ricardo spent $327 on food products and $50 on advertising for the concession stand. The sales were $349. How much money did the concession stand make or lose in November? • s - c - a = profit/loss • $349 - $327 - $50 =

  11. School Food • During the month of November, Ricardo spent $327 on food products and $50 on advertising for the concession stand. The sales were $349. How much money did the concession stand make or lose in November? • s - c - a = profit/loss • $349 - $327 - $50 = • $349 - $327 -$50 = $-28 (loss)

  12. Algebraic Expressions Can Be Evaluated for Different Values • Evaluate -4x + 7 for x = -2, -1, 0, and 1 X Y - 2 -1 0 1

  13. Algebraic Expressions Can Be Evaluated for Different Values • Evaluate -4x + 7 for x = -2, -1, 0, and 1 X Y - 2 -1 0 1 15 11 7 3

  14. Practice • Evaluate 2(a+b)2 / c for a = -5, b = 14, and c = -3

  15. Practice • Evaluate 2(a+b)2 / c for a = -5, b = 14, and c = -3 = - 54

  16. Practice • 6x + 5y + 17 + 2x…. How can you simplify? • 24 + 13y2 - 8y2 ….How can you simplify?

  17. Homework = PW 14.2 Odds only…

More Related