Substitution is a method of finding x or y value by taking,
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1st full equation in name of x and substituting to get the value.
Hope helped
Answer is the second option, the one that says X+1/1
Answer:
C) -9.6
Step-by-step explanation:
The object reaches the lowest height at 5 seconds
<h3>How to determine the time?</h3>
The function is given as:
f(t) = -2t² +22t + 6
Differentiate the function
f'(t) = -4t +22
Set to 0
-4t +22 = 0
Subtract 22 from both sides
-4t = -22
Divide both sides by -4
t = 5.5
Remove decimal points
t = 5
Hence, the object reaches the lowest height at 5 seconds
Read more about quadratic functions at:
brainly.com/question/1214333
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