You can write this as two equations, and solve them separately. The two equations are:x - 19 = -3and:-x - 19 = -3
the absolute value of any number is always the positive value of that number absolute value of 0.4 = 0.4
The absolute value of -7= 7 The absolute value of 7= 7 Therefore, the absolute values of both 7 and -7 are the same, because absolute value is the distance a number is from zero, regardless of sign.
The absolute value of any positive number is the number itself.
The absolute value of a number is a positive number. For example the absolute value of -2 is 2. The absolute value of 4 is 4. So the absoulte value of 25 is 25.
A ray, is a line that starts at one point and goes on forever. Two absolute value equations that could share part of a ray are 0,0 and 30,30.
Because it farts
vertex
The absolute value of something is also the square root of the square of that something. This can be used to solve equations involving absolute values.
Itβs vertex is not at the origin
Its vertex is not at the origin
Absolute Value means the distance from 0, and so you should solve the equation with the number inside the Absolute Value lines as a positive and then solve again as a negative.
Positive X or Negative X
You can write this as two equations, and solve them separately. The two equations are:x - 19 = -3and:-x - 19 = -3
To solve equations with absolute values in them, square the absolute value and then take the square root. This works because the square of a negative number is positive, and the square root of that square is the abosolute value of the original number.
There are three main types of vertices for an absolute value function. There are some vertices which are carried over from the function, and taking its absolute value makes no difference. For example, the vertex of the parabola y = 3*x^2 + 15 is not affected by taking absolute values. Then there are some vertices which are reflected in the x-axis because of the absolute value. For example, the vertex of the absolute value of y = 3*x^2 - 15, that is y = |3*x^2 - 15| will be the reflection of the vertex of the original. Finally there are points where the function is "bounced" off the x-axis. These points can be identified by solving for the roots of the original equation. -------------- The above answer considers the absolute value of a parabola. There is a simpler, more common function, y = lxl. In this form, the vertex is (0,0). A more general form is y = lx-hl +k, where y = lxl has been translated h units to the right and k units up. This function has its vertex at (h,k). Finally, for y = albx-hl + k, where the graph has been stretched vertically by a factor of a and compressed horizontally by a factor of b, the vertex will be at (h/b,ak). Of course, you can always find the vertex by graphing, especially since you might not remember the 2nd or 3rd parts above.
An equation with absolute values instead of simple variables has twice as many solutions as an otherwise identical equation with simple variables, because every absolute value has both a negative and a positive counterpart.