Do 4.98*7 5/8 and then you will have your answer its all in the question
Answer:
f^(-1)(x) = \frac{-1}{5} (x+4)
Step-by-step explanation:
Given is a function
To find its inverse.
We must check whether f is one to one or onto first
If -5x1-4 = -5x2-4 we get x1=x2
Hence f is one to one
Also for every f(x) we can find a x so f is onto.
So inverse exists
Let
Replace x by f inverse and y by x
Answer:
Look at the explanation.
Step-by-step explanation:
Start y=-2x-3 at the Y -3 and X 0, then go up two and to the right one, like a staircase. For y=-x+3 start on Y 3 and X 0 and go down 1 x and 1 y like a downstair staircase with 1 unit down.
Answer:
16. Parallelogram
17. x=3, y=9
Step-by-step explanation:
16. You should graph it to get a visual. But using the given points, you can tell that the slopes for the lines AC and BD are the same, thus meaning those lines are parallel. The same for lines AD and BC.
17. 5x+2=17, so x= 3
3y-6=21, so y=9
Answer:
r=3,r=25/27,r=3
Step-by-step explanation:
In equation y=rx
make r the subject of the formula by dividing both sides by x
r=y/x
1). when y=15 and x=5
r=15/5
r=3
2). when y=25 and x=81/3
r=25/81/3
r=25÷81/3
r=25*3/81
r=75/27
r=25/27
3). when y=33 and x=11
r=33/11
r=3
