Instructor: Suman Ganguli

Month: February 2024 (Page 3 of 4)

Math Department Tutoring

The Math Department has arranged for free tutoring Monday-Saturday over Zoom. See below for the zoom link, and for the flyer with the daily hours tutors are available. See also this OpenLab site for profiles of the tutors (who are all current or recent CityTech math majors) and their individual schedules (all the tutors should be qualified to answer questions regarding MAT1275).

Zoom link:

https://us02web.zoom.us/j/82424517647?pwd=UklRc0FlQWVMblBPVFZWbzk3ajQ4dz09

Password: 123456

Also note the following:

Every time a student joins Zoom tutoring, they must complete this form. This process allows us to effectively track the math subjects and topics covered during each sessions.

https://tinyurl.com/NYCCTMathTutoring

via https://openlab.citytech.cuny.edu/perkinsgrantmathtutoring/2023/09/10/sign-in-form/

Office hours – Mon Feb 12

Since we don’t have class today (the college is closed for Lincoln’s birthday), I will instead have office hours over Blackboard Collaborate during our class time.

To join office hours, log in to Blackboard and go to our Blackboard Collaborate page; I have scheduled a session for today 12p-1:40p.

Please join if you have WebWork exercises you want to go through together, or want to ask about examples we went through in class.

Class 4 Recap (Wed Feb 7)

Links

Topics

First we did a couple more examples from the “Integer Exponents” WebWork:

We introduced polynomials of various degrees:

Polynomials are degree 1 are simply “linear expressions,” i.e., expressions of the form Ax + B; an example from “Linear Expressions” WebWork:

Previewing how we will solve quadratic equations using the quadratic formula:

We looked at the graph of the quadratic polynomial above in Desmos, and noted how the solutions of the corresponding quadratic equation give the x-intercepts of the parabola. See: https://www.desmos.com/calculator/mutsgaaxwe

Multiplying polynomials–in particular, using “FOIL” to multiply two (linear) “binomial” expressions:

Another example from “Multiply Polynomials”:

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