Question

PLEASEE HELPPP

Which quadratic function is represented by the table?
A f(x) = 3x^2 + 2x – 5
B f(x) = 3x^2 – 2x + 5
C f(x) = 2x^2 + 3x – 5
D f(x) = 2x^2 – 2x + 5

Answer 1

Answer: B) f(x)=3x^2-2x+5

You just have to plug in an x value from the table and see if it equals f(x) after simplifying it. If it does, then it fits. 

Just make sure to follow PEMDAS (Parenthesis, Exponents, Multiplication, Division, Addition, Subtraction).

Answer 2

Answer:

f(x) = 3x² – 2x + 5.

Step-by-step explanation:

Given : Table with x and f(x).

To find : Which quadratic function is represented by the table.

Solution : We have given that

We need to plug different values of x in f(x).

For x = -2.

f(x) = 3x² – 2x + 5

f(-2) = 3(-2)² – 2(-2) + 5.

f(-2) = 12 + 4 + 5.

f(-2) = 21.

f(-1) = 3(-1)² – 2(-1) + 5.

f(-1)   = 3 + 2+ 5.

f(-1)   = 10.

Therefore, f(x) = 3x² – 2x + 5.