# Algebra check

posted by .

Determine whether f(x)=x^2 is one to one.

When I substitute values in for x even when I use negative values x^2 will be positive so is it one to one?

## Similar Questions

1. ### domain

How do you find the domain of log(x^2-4)?
2. ### Math

determine the domain. express in interval notation. y = rt(x^2-7x+10) i know this much- y = rt[(x-5)(x-2)] now what do i do?
3. ### algebra

What are the intercepting points of y^2=-4x and x^2=y I set both equations equal to 0, but only get x=0 and there is another intercepting point. please help! Graphically, y=x^2 is positive for all values of x, whether positive or negative. …
4. ### MATH,HELP

Can someone show me how to even do this problem. Find all positive values for K for which each of the following can be factored. x^2 + x - k News flash: It can be factored with any term (although the roots may not be real roots). Now …
5. ### ALGEBRA

Find all positive values for k for which each of the following can be factored. I have 2 problems i think i got the one right but not sure the second one i have no idea where to even start 2x^3+16x^2-40x=2x(x^2+8x-20) (x-2)(x+10)=8x …
6. ### algebra

Find all positive values for k for which each of the following can be factored. x^2+3x+kthe coefficent of the middle term is 3 3=2+1 k=2*1=2 did i do this right This one I had no Idea where to start can some one please explain it to …
7. ### Algebra

72. Solve for the variable in the equation: 4.9x + 4.4 = 19.1 x=3?
8. ### Physics

Two spheres of charge q1 and q2 that are equal in magnitude (i.e. |q1| = |q2|) are attached by a spring with a constant k = 1440kg/s2 and a rest length of x0 = 83.0cm. We take negative values of Äx for compression and positive Äx …
9. ### Please check my Calculus

1. Find all points of inflection of the function f(x)=x^4+x^3 A. (0, 0) and (-½, -1/16) B. (-½, -1/16) C. (0, 0) D. (0, 0) and (-¾, -27/256) E. none of these I got A. I found the second derivative and solved for x and plugged in …
10. ### algerbra

i did my question already but i was wondering if someone could double check my work. the question says to graph the following function on the grpah f(x)={|x|, -3 is equal to or less than x less than 2} {2x-8, x less than or equal to …

More Similar Questions