Which is f(5) for the function –2x2 + 2x – 3?
2 answers:
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Answer:
Yes, he will have enough 3 over 8 ft pieces for his class.
Step-by-step explanation:
Given:
Number of wood required = 22
Length of each wood,
Total length of the board,
Therefore, the number of woods that can be made using the given board is given as:
So, he can make 24 woods of length using the 9 ft board. But he has to make only 22 pieces.
Therefore, he has enough of the wood to make the required number of pieces.
x=-3 then y= 27
x= -2 then y= 9
x=2 then y:
x=3 then y:
The graph of the function decreases from left to right.
Option C is correct.
Step-by-step explanation:
We are given the function:
and we need to fill the table
if x = -3 then y=?
Putting value of x in the given function:
Applying exponent rule a^-b= 1/a^b
if x = -2 then y=?
Putting value of x in the given function:
Applying exponent rule a^-b= 1/a^b
if x = 2 then y=?
Putting value of x in the given function:
Applying exponent rule a^-b= 1/a^b
if x = 3 then y=?
Putting value of x in the given function:
Applying exponent rule a^-b= 1/a^b
So, x=-3 then y= 27
x= -2 then y= 9
x=2 then y:
x=3 then y:
Graph of the function is shown in figure attached.
The graph of the function decreases from left to right.
Option C is correct.
Keywords: Solving Equations
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