Mathieu is finding the x-intercepts of the function f(x) = x2 + 4x + 3. His work is shown below. Which error did Mathieu make?
Answers
A function assigns the value of each element of one set to the other specific element of another set. The correct option is C.
What is a Function?
A function assigns the value of each element of one set to the other specific element of another set.
The x-intercepts of the function f(x) = x² + 4x + 3 can be found as shown below.
f(x) = x² + 4x + 3
0 = x² + 4x + 3
0 = (x+3)(x+1)
x = -3, -1
Now, it can be seen that Mathieu has actually set the factored expressions equal to each other, which was wrong.
Hence, the correct option is C.
Learn more about Function:
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Answer:
I can't see Mathieu's work but I will show the right steps and maybe you can find where Mathieu went wrong.
f(x)=x^2+4x+3
f(x)=(x+3)(x+1) Since 3*1=3 and 3+1=4
The x-intercepts can be found by setting y to 0 and solving for x
(in other words replace that f(x) thing with 0 and solve for x)
0=(x+3)(x+1)
Now set both factors equal to 0
x+3=0 or x+1=0
x =-3 x=-1
The x-intercepts are at (-3,0) and (-1,0)
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CHECK OUR WORK
1159 × 85 = 98515
So, we were right!! :)
So, there would be 1159 trees on each acre.
Hope I helped ya!!
Answer
Find out the how many trees are there on each acre of land .
To prove
Let us assume that the trees are there on each acre of land = x
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Idk give me the options.....
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Answe is C. 34
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