11/15/2022-HW Alg2/Trig Review 1

come on y'all, this was on your test today!! :-)

(Unit 1--Notes from Absolute Value--sept)

(Unit 2B-Quadratics (Complex))

(take out the i's, multiply outside and inside then simplify)

(Unit 2B-Quadratics (Complex))

Choose all that apply:

(Hint: if the discriminate is negative the solution is non-real. if you solve by square root and get an imaginary answer, the solution is non-real)

(Unit 2B-Quadratics (Complex))

(type these equations DIRECTLY into the graphing tool in desmos...see if they intersect. For systems, solutions are always where the graphs intersect (NOT where it hits the x axis!))

(it may be a little hard to do this one by substitution or by graphing by hand...so I'm caving, use Desmos)

https://www.desmos.com/testing/virginia/graphing

(from unit 2B...for < or >, try a number in that set to see if it works. You're looking for a discriminate that is negative here)

(Unit 2B-Quadratics (Complex))...you'll need to use a different number for c and try it 4 ways based on the answer choices..for example:

for A. since c < -3, you'll want to choose a number like -4

for B. use -3

for C. use 3

for D. since c > -3, you'll want to choose a number like -2)

Your answer will be the one which provides you a negative number once you evaluate the discriminant.

(use quadratic formula...unit 2B)

(how many times do the graphs intersect?)

(this is from the current unit...find an LCD and evaluate)

upload your pages of work here--page 1

upload your pages of work here--page 2

upload your pages of work here--page 3