# 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?

## 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