Post Test: Functions ♡ Submit Test
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sino
The points on the graphs represent relations. Classify these relations according to whether or not they are functions.
2
21
1
2
Function
Not a Function

Functions: 2

Not a Function: 1 and 3

Step-by-step explanation:

1 and 3 cross over each other and don't go in a straight line.

Whilst, 2 does technically go in a straight line.

b

step-by-step explanation:

ez

answer: 204

step-by-step explanation:

we are told that the revenue is

x⋅(4080−10x)=−10x^2+4080x

this is a quadratic function, so to maximize it we should find the x-value of its vertex. recall that the x-value of the vertex of the parabola ax^2+bx+c is given by the formula −b/2a.

so in this case, we have a=−10 and b=4080, so the x-value of the vertex is

−b/2a= −(4080)/2(−10)=204