F(x) = { -2x -1, x ≤ 2
1 answer:
Answer:
Use the appropriate entry method for piecewise functions for the graphing calculator of interest.
Step-by-step explanation:
For Desmos, the entry looks like ...
f(x) = {x ≤ 2: -2x-1,-x+4}
_____
For a TI-84 calculator, the entry may look like ...
Y₁ = (-2X–1)(X≤2) + (-X+4)(X>2)
The symbols ≤ and > come from the TEST menu, which is the (2nd) shift of the MATH key.
Note that the function is the sum of the pieces, each piece multiplied by a test. For something like 0≤x<2, the multiplier would be a pair of tests:
... (0≤X)(X<2)
You might be interested in
Yes, the sum of the digits in any multiple of 9 will add to 9 always.
<u><em>Explanation</em></u>
If we multiply any number by 9, then the result is said to be "multiple of 9".
So, lets take any number like 1456 and now we will multiply it by 9.
Thus,
That means <u>13104 is a multiple of 9</u>.
Now the sum of the digits of this 13104 will be:
So, we can say that the sum of the digits in any multiple of 9 will add to 9 always.