# algebra 2

use a graphing calculator to graph the function y=x^2-3x+15. a. what does the graph let you conclude about real number solutions of x^2-4x+13=0? explain. b. substitue 2-2i for x in the equation x^2-4x+13=0. simplify. is the resulting equation true? show your work.

1. 👍 0
2. 👎 0
3. 👁 57

## Similar Questions

1. ### pre-calculus 11

I have the question what is the equation of the function in the form f(x) = 1/x-c for the function with a vertical asymptote at x=1? sketch the graph. I am uncertain how I plug this into a graphing calculator. Could I substitute 1

asked by george on June 10, 2015
2. ### Algebra

Today I’m learning something new but I don’t know how to solve this. I have 2 questions about it but I feel as if, if someone explain/ show how I can complete the first one I’ll be fine with doing the second one in my own.

asked by Samantha on March 14, 2018
3. ### Trigonometry

I'm having a lot of trouble with graphing trig functions. Can anyone tell me how to graph this equation on a graphing calculator? Sketch the graph of y= sin x in the interval 0 ≤ x ≤4π

asked by Peter pan on April 3, 2012
4. ### Math

I have a TI-83 graphing calculator. How do you graph a polar equation on this calculator. Also how would I graph lim 5/x-2 x-->2 in order to find the limit?

5. ### Triggggggg ;(

Use your graphing calculator to graph y = cos^−1(x)in degree mode. Use the graph with the appropriate command to evaluate each expression. (a)cos^−1(√2/2) = ___________˚ (b)cos^−1(-1/2) = _____________° (c)arccos

asked by Anonymous on March 3, 2014
6. ### Math

An open box is to be made from cutting squares of side s from each corner of a piece of cardboard 25" by 30". a.Write an expression for the volume, V, of the box in terms of s. b. Graph V(s) using your graphing calculator.

asked by Anonymous on August 15, 2009
7. ### pre-cal: graphs of functions- fill in the blank

To find the domain of a function from its graph... To find the range of a function from its graph... To approximate the relative minimum or maximum of a function using a graphing utility,... Let a(,f(a)) and (b,f(b)) be two points

asked by Anonymous on September 16, 2007
8. ### Math

I am given a graph and asked to derive the function from it. The answer key says y=(-3x^2-5)/(x^2-25)- use wolfram to graph for your convenience. I got the asymptotes but the -5 constant I don't get where it came from. Someone

asked by Beth on October 16, 2015
9. ### Pre-Calculus

1) Use a graphing utility to obtain the graph of the function. Give the domain of the function and identify any vertical or horizontal asymptotes. x+4/ x^2+x-6. 2) Use a graphing utility to graph the function and determine the