Math Talk: Mental computation Sort the systems in order of least solutions. Then solve. A −6𝑥−2𝑦+6𝑧=−8 3𝑥+4𝑦+12𝑧=8 6𝑥+2𝑦−6𝑧=−18 B −5𝑥−7𝑦+3𝑧=−5 15𝑥+21𝑦−9𝑧=15 10𝑥−14𝑦+6𝑧=−10 C −3𝑥−𝑦−3𝑧=−8 −5𝑥+3𝑦+6𝑧=−4 −6𝑥−4𝑦+𝑧=−20 (2,2,0)

Math Talk: Mental computation

Math Talk: Mental computation

Routines for turning in homework (turn in online – go to clever: https://clever.com/in/luhsd Check the answers to your homework with my notebook and online at clever. This is not a time to mark your paper, but just to do a quick check and check for understanding for yourself. Label your homework with your name, homework number and the page and exercises assigned at the top. Turn in your paper on the folder labeled “homework #7” Have a seat when you are done and take out your student journal, we will continue any exercises we didn’t finish from the day before.

How did it go? “Printing Tickets” 

Characteristics of a Quadratic Equation Vertex can either be Maximum Point Minimum Point The Parabola is increasing to the right of x coordinate vertex The Parabola is decreasing to the left of x coordinate vertex

Vertex Vertex Form Standard Form Intercept Form

Example: Calculate the vertex, max or min value, domain and range Example: Calculate the vertex, max or min value, domain and range. Also, create a table with 5 points. 𝑔 𝑥 = −2𝑥 2 +𝑥−3

Homework 9: