Answer: 378
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Work Shown:
f(x) = x^2 - 3x
f(x) = ( x )^2 - 3*( x )
f(-18) = ( -18 )^2 - 3*( -18 ) ... replace every x with -18; now use PEMDAS
f(-18) = 324 - 3*( -18 )
f(-18) = 324 + 54
f(-18) = 378
Answer:
8 green picks
Step-by-step explanation:
Since this problem is a ratio that also gives a total, setting up equivalent ratios in a table with the total would be a good way to find the answer. Since there is 1 orange pick for every 2 green picks and there are a total of 12 picks, we can set up the following:
Orange 1 2 3 4 5
Green 2 4 6 8 10
Total 3 6 9 12 15
You can see from the table, that when there are 12 total picks, 4 of them are orange and 8 of them are green.
To be a function, a graphed equation must pass the vertical line test, i.e. a vertical line must not pass through more than one point on the graph, or the equation must not have more than one y-value for each x-value. All but the lower-left graph fail this test, and are therefore not functions.
option with 7 as the answer is correct
