Post a New Question

math

posted by .

Sketch y=|(x-1)(x-3)| and y=|x^2-4x| .
I don't know how to sketch the graphs :(

  • math -

    in your previous post I showed you how to graph the absolute value of linear function.
    The same concept is true for the above quadratics

    for y=|(x-1)(x-3)|
    You will have two parabolas, one is
    y = (x-1)(x-3) the other is y = -(x-1)(x-3)
    one will open up , the other will open down
    They both have the same x-intercepts of 1 and 3
    So sketch both of them, then erase the part of both of them that lies below the x-axis.
    Do the same for the second equation.
    They will have similar shapes, except the second has x-intercepts of 2 and -2

  • math -

    i still don't really understand. How can i sketch y=(x-1)(x-3) and y=-(x-1)(x-3) ? what is the coordinate?

Respond to this Question

First Name
School Subject
Your Answer

Similar Questions

  1. calc

    i need to sketch a graph that satisfies all of these conditions: - it is defined for all #s except 0 - f(1) = 0 f(2)=2 f(3)=1 - f'(2)=0 f''(3)=0 - f''(x)<0 when x<0 and when 0<x<3 - f''(x)>0 when x>3 - lim x->0 …
  2. statistics

    How do I sketch distributions? I think I'm doing it wrong. Is there an option my friends stats-calc(her calcultor is very tempremental, so i don't know if it'll work) I can utiilzie that'll sketch things for me?
  3. math sketch

    how do you sketch these graphs: k is a positve constant: y=(x+k)(x-2k) and y=x(x-k)(x-5k)
  4. maths

    sketch on a diagram the graphs of 1)y=x^2 2)y=(x+a)^2 3)y=b(x+a)^2 4)y=b(x+a)^2+c
  5. chemistry 12

    hey i was wondering, i have this question: Sketch a pH curve for the titration of 40.00mL of 0.100 M hydrazine, H2NNH2, having a K of 3.0x10^-6 by 0.100 M HCIO4 i know you can t sketch but could you tell me what to do with the "K of …
  6. math

    Sketch the graphs of f(x) = x^2 and g(x) = 2x. Find a number a between 0 and 2 so that when the region between the graphs of f and g for 0 <= x <= a is revolved about the y-axis, the volume of the solid produced is 7pia3/12 . …
  7. math

    what does this question mean : Sketch a graph to show four graphs in each family. a) y=(x-3)(x+6) b) y= (x+1)(x+1)
  8. Maths trig

    Sketch the graphs of f(x)=3overx+1 and g(x)=-2x-4
  9. Algrebra, Graphs, Math

    How do I sketch my graph of X+Y=3? Please help! I don't understand. Do I need to solve this like the rest of my previous graphs if so, then how?
  10. science

    Design: Describe, using specific details, the spacecraft that you and/or other explorers will use to travel to your destination. In addition, make a detailed sketch of the spacecraft and its components that you will submit to your …

More Similar Questions

Post a New Question