All categories

3 years ago

5. Evaluate f(x) = 2x – 7 at the given value. f(4)=?

Mathematics

2 answers:

slava [35]3 years ago

8 0

Answer:

f(5) = 14

Step-by-step explanation:

Just replace the variable "x" with "5":

f(5) = 2×5 + 4 = 14

Elenna [48]3 years ago

3 0

Answer:

Step-by-step explanation:

Since the value of x is 4 ( because four is in the position of x) you would plug in 4 into he equation.

2(4) = 8

Then 8 - 7 = 1

F(4) is 1

Therefore, your final answer is 1.

You might be interested in

Determine if the two expressions are equivalent and

boyakko [2]

9514 1404 393

Answer:

yes. Commutative Property of Addition

Step-by-step explanation:

The commutative property of addition tells you that the order of the addends is immaterial. These expressions are equivalent.

6 0

3 years ago

Can someone help me please

fredd [130]

The answer to that is C.

6 0

3 years ago

If f(x)=x^2- 4 and g(x)=x^2 plus 2 x,

gregori [183]

Answer:

$\huge\boxed{(f-g)\left(-\dfrac{1}{3}\right)=-3\dfrac{1}{3}}$

Step-by-step explanation:

$\text{We have}:\\\\f(x)=x^2-4\ \text{and}\ g(x)=x^2+2x\\\\(f-g)(x)=f(x)-g(x)\\\\\text{therefore}\\\\(f-g)(x)=(x^2-4)-(x^2+2x)=x^2-4-x^2-2x\\\\=(x^2-x^2)-2x-4=-2x-4\\\\(f-g)\left(-\dfrac{1}{3}\right)\to\text{put}\ x=-\dfrac{1}{3}\ \text{to the equation of the function}\ (f-g)(x):\\\\(f-g)\left(-\dfrac{1}{3}\right)=-2\left(-\dfrac{1}{3}\right)-4=\dfrac{2}{3}-4=-3\dfrac{1}{3}$

6 0

3 years ago

How do you work this out?

oksian1 [2.3K]

I think this problem is 3

8 0

3 years ago

On a fishing trip, mark caught twenty - four fish. He caught some rock fish averaging 2.5 pounds and some blue fish averaging 8

zloy xaker [14]

He cause 14 blue fish and 10 rock fish
14x8=112 10x2.5=25 112+25=137

7 0

3 years ago