SOLUTION: The table shows some values for the function y=11x-2x^2-12 for 1 < or equals to X < or equals to 4.5 |X|1|1.5|2|2.5|3|3.5|4|4.5 |Y|-3| |2|3 |3| | | | A) Complete the table

Algebra ->  Quadratic Equations and Parabolas -> SOLUTION: The table shows some values for the function y=11x-2x^2-12 for 1 < or equals to X < or equals to 4.5 |X|1|1.5|2|2.5|3|3.5|4|4.5 |Y|-3| |2|3 |3| | | | A) Complete the table       Log On


   

Question 1011475: The table shows some values for the function y=11x-2x^2-12 for 1 < or equals to X < or equals to 4.5
|X|1|1.5|2|2.5|3|3.5|4|4.5
|Y|-3| |2|3 |3| | | |
A) Complete the table of values
B) draw a graph to solve the equation 11x-2x^2-12=0
The table of values is not perfect, pls I advice u draw it again on a sheet of paper to know which one belongs to which.
Answer by MathLover1(20849) About Me  (Show Source):
You can put this solution on YOUR website!
x|1|1.5|2|2.5|3|3.5|4|4.5
y|-3|_ |2|3+ |3| _ |_ |_
you are missing y for x=1.5,x=3.5,x=4, and x=4.5
y=11x-2x%5E2-12 for x=1.5
y=11%281.5%29-2%281.5%29%5E2-12
y=16.5-4.5-12
y=16.5-16.5
y=0
y=11x-2x%5E2-12 for x=3.5
y=11%283.5%29-2%283.5%29%5E2-12
y=38.5-24.5-12
y=38.5-36.5
y=2
y=11x-2x%5E2-12 for x=4
y=11%284%29-2%284%29%5E2-12
y=44-32-12
y=44-44
y=0

y=11x-2x%5E2-12 for x=4.5
y=11%284.5%29-2%284.5%29%5E2-12
y=49.5-40.5-12
y=49.5-52.5
y=-3

so, your table is:

x|1|1.5|2|2.5|3|3.5|4|4.5
y|-3|0 |2|3+ |3| 2 |0|-3

plot these points and draw a line through: