restrict the domains of quadratic functions and absolute value functions, because these functions are
functions. For instance, the quadratic function f(x) = x^2 pairs both −2 and 2 with 4, and the absolute value function f(x) = |x| pairs both −2 and 2 with 2.
Linear functions (excluding constant functions) and exponential functions are
functions, so their domains
to be restricted.
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An absolute value function, without domain restriction, has an inverse that is NOT a function.
In order to guarantee that the inverse must also be a function, we need to restrict the domain of the absolute value function to make it a one-to-one function.
Answer:
23520
Step-by-step explanation:
Given that solution for some equation is x=6
Now they want to change x=6 into x=9.
Notice that all equations contans equal sign (=) because both side values are always same.
So if by any chance you want to change value of one side then you must change value on other side too
like we see that 6 changed to 9 by adding 3 on right side then we must add 3 on the left side too
so we get:
x=6
x+3=6+3
x+3=9
Now question says that the left side of the equation stays the same. That is possible only if we move +3 to the right side from the left side so we can write;
x=9-3
I think the answer is 13.5 square units.
Eliminate parentheses using the distributive property.
... 5x = 10x -10x +15
Collect terms, then divide by the coefficient of x.
... 5x = 15
... x = 3
