3 years ago

Evaluate f(-2) if f(x)=-3x^2-1

Mathematics

1 answer:

Pani-rosa [81]3 years ago

4 0

f(x)=-3x^2-1

f(-2)= -3(-2)²-1=-3·4-1= - 13

You might be interested in

What are the zeros of the function f(x) = x2 – 10x + 21?<br> help bro

Nady [450]

Answer:

3, 7

Step-by-step explanation:

"Zeros" means solutions to the equation f(x) = 0. In other words, what are the values of x that make the function's value equal to zero?

This one can be solved by factoring.

$x^2-10x+21=0\\(x-7)(x-3)=0\\x-7=0 \text{ or } x-3=0\\x=7 \text{ or } x=3$

5 0

3 years ago

Sean says that to add a number to –100 and still have –100 is to add zero. Candice says that she can add two numbers to –100 and

Vitek1552 [10]

They both are correct <span>because adding two numbers that are opposites is equivalent to adding zero.

I had the same question on my quiz.</span>

3 0

3 years ago

Read 2 more answers

If f(x) = 3^x and g(x) = 3^(x+1)+6. Describe the transformations from f(x) to g(x).

OlgaM077 [116]

To move tot he right h units, subtract h from every x to move up k units, add k to the whole equaiton added 1 to every x (subtract -1) added6 to whole thing moved -1 to right (moved 1 to left) moved up 6 units answer is A

5 0

3 years ago

10 + 4x = 6<br> I would like to find the equation

sp2606 [1]

Answer:

4x=6-10

4x=-4

x=-4÷4

x=-1

8 0

3 years ago

Read 2 more answers

Otrada [13]

Answer:

the ans is

Step-by-step explanation:

V=πr2h=π·32·6≈169.646

8 0

2 years ago