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A so-called "variable", such as "x", depending on the context, can either represent:* As a placeholder for any value, as in: "For any number x, 2x = x + x" (i.e., two times the number is the same as if you add the number to itself),
* As an unknown quantity which you have to solve for, for example: "x + 3 = 10; how much is x?"
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Do 5 x and x 5 represent the same expression?
yes
Can -x represent a positive number?
Yes, if x is a negative number.
What is the total of 8 and a number when using x to represent the variable?
8 + x
If x represent some number what must be four times x?
4x
What is X-XCIX?
The Roman numerals X-XCIX represent 10-99
What does a point represent on a graph?
A point can represent a piece of data or an (x,y) value.
What do the factors of 4p2 represent?
2 x 2 x p x p
Does y0 represent y as a function of x?
y0(x) could represent a function of x but usually y(0) represents the function y that is evaluated at x = 0 and so is no longer a function of x but a constant.
Do 5 x and x 5 represent the same expression?
yes
Can -x represent a positive number?
Yes, if x is a negative number.
On a graph what does the x-axis represent and what does the y-axis represent?
X-Axis is manipulated variable. Y-Axis is responding variable
What represent Ca Celin?
Ewan =x=
What does x represent in 426-x329?
97
What does Ca Celin represent?
Ewan =x=
Which parent function does the graph represent?
f(x)=x^2 apex
How do you find x and y in matrices?
The answer depends on what x and y are supposed to represent.
What is the total of 8 and a number when using x to represent the variable?
8 + x
