1.03 Module 1 Quiz

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Layla P. Assignment Questions The year is 2033, and intelligent life has been found on Mars! Little green Martians have found their way to Earth and have appointed you as the Ultimate Math Ambassador to their planet. You must help them understand how Earthlings use math. 1. Two Martians, Splott and Fizzle, have solved the equation 2x + 4 = –3x + 14. Examine the work of Splott and Fizzle. Identify any errors in the Martians’ calculations and explain using complete sentences, what corrections they should make. Splotts work: Right Or Wrong: 2x + 4 = –3x + 14 2x + 4 + 3x = –3x + 14 + 3x RIGHT 5x + 4 = 14 RIGHT 5x + 4 + 4 = 14 + 4 WRONG: He should’ve subtracted 4 on both sides 5x = 18 so it is 5x=10 5 x divided by 5 is equal to 18 divided by 5 so that Then you would divide by 5 on both sides X would equal 18/5 so X would equal 10/5 (which equals 2) Fizzles work: Right Or Wrong: 2x + 4 = –3x + 14 2x + 4 – 2x = –3x + 14 – 2x RIGHT 4 = 14 – 5x RIGHT 4 – 14 = 14 – 5x – 14 RIGHT –12 = –5x RIGHT –12 + 5 = –5x + 5 WRONG: Fizzle should have divided by -5 on both sides to make x equal 2.4 2. Create your own function to teach the Martians about functions. Your function must

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