All categories

4 years ago

Let f(x) = 2x - 6 Solve f-1(x) when x = 2..

1 answer:

8 0

1) Plug in 2 into the equation:
f(x) = 2x - 6

2) f(2) = 2(2) - 6
f(2) = 4 - 6
f(2) = -2

Feel free to ask if you need me to clarify anything! :)

You might be interested in

The selling price of each washing machine is $480. One is marked down by 50% the second one is marked down by 30% with an extra

Nataliya [291]

The first one is $240, and the second one is $235.20

6 0

3 years ago

What is -4k - 7 + 5k ? I need to know the steps in order to do this

MArishka [77]

-4K-7+5k
First. You have to plus the negative 4K in the 5K together which makes it K or
1K
So now you equation would be: k-7

5 0

4 years ago

Read 2 more answers

. A line goes through the points (3, -4) and (-1, 8). write the equation of the line in point-slope form. (Show the steps for ho

Allushta [10]

Answer: y= -3x + 5

Step-by-step explanation:

y2-y1 divide by x2-x1 = m

therefore you would do 8 - -4= 12 divide by -1 - 3= -4 which gives you 12 divided by -4

m= 12/-4 aka m = -3

and to find the y intercept you should use one of the point coordination to plug it into the formula y=mx+ b

use (-1,8)

8= -3(-1) + b

8= 3+b

subtract 3 from both sides

b= 5

then plug the m and the b into y=mx + b

and you get y= -3 + 5

3 0

1 year ago

I urgently need help!!!!!!

kifflom [539]

Answer:

try C if not then A B or D

Step-by-step explanation:

7 0

3 years ago

Find (f ∘ g)(-6) when f(x) = 9x + 2 and g(x) = -9x2 - 2x + 1.

Salsk061 [2.6K]

Given that the two functions are $f(x)=9x+2$ and $g(x)=-9x^2-2x+1$

We need to determine the value of $(f \circ g)(-6)$

The value of $(f \circ g)(x)$ :

The value of $(f \circ g)(x)$ can be determined using the formula,

$(f \circ g)(x)=f[g(x)]$

Substituting $g(x)=-9x^2-2x+1$ in the above formula, we get;

$(f \circ g)(x)=f[-9x^2-2x+1]$

Now, substituting $x=-9 x^{2}-2 x+1$ in the function $f(x)=9x+2$ , we get;

$(f \circ g)(x)=9(-9x^2-2x+1)+2$

$(f \circ g)(x)=-81x^2-18x+9+2$

$(f \circ g)(x)=-81x^2-18x+11$

Thus, the value of $(f \circ g)(x)$ is $(f \circ g)(x)=-81x^2-18x+11$

The value of $(f \circ g)(-6)$ :

The value of $(f \circ g)(-6)$ can be determined by substituting x = -6 in the function $(f \circ g)(x)=-81x^2-18x+11$

Thus, we have;

$(f \circ g)(-6)=-81(-6)^2-18(-6)+11$

$(f \circ g)(-6)=-81(36)-18(-6)+11$

$(f \circ g)(-6)=-2916+108+11$

$(f \circ g)(-6)=-2797$

Thus, the value of $(f \circ g)(-6)$ is -2797

Hence, Option B is the correct answer.

8 0

4 years ago