For the given equation, find the values of a, b, and c, determine the direction in which the parabola opens, an determine the y-intercept. Decide which table best illustrates these values for the equation: y=x^2+7x
Table A
b
7
up or down
up
1
y-intercept
(0,0)
0
Table B
a
b
IN
up or down
up
y-intercept
(0,0)
1
0
Table C
a
b
С
up or down
y-intercept
(0,0)
7
1
0
down
Table D
b
С
y-intercept
up or down
HA

answer: procent 54 wynosi 33,33%

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

"image"

step-by-step explanation:

in most of these problems, the notation is that the point with a "prime" is the image of the point without. that is, b' is the image of b.

here, there is no dilation or reflection. there is simply translation (with no direction shown). which figure you call the "preimage" and which one you call the "image" is up to you. as a matter of convention, the naming is as described above.