7x - 4 = -4 Solve for x. Please show your work. Thanks!
2 answers:
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Answer:
See below
Step-by-step explanation:
I assume you mean
The equation is already in vertex form where
affects how "fat" or "skinny" the parabola is and
is the vertex. Therefore, the vertex is
.
The axis of symmetry is a line where the parabola is cut into two congruent halves. This is defined as for a parabola with a vertical axis. Hence, the axis of symmetry is
.
The minimum value is the smallest value in the range of the function. In the case of a parabola, the y-coordinate of the vertex is the minimum value. Therefore, the minimum value is .
The interval where the function is decreasing is
The interval where the function is increasing is
Answer:
The animal farm should buy 1.775 bags of soybeans and 1.575 bags of oats
Step-by-step explanation:
The given parameters can be summarized as:
Where: x = Soybeans and y = Oats.
So, the system of equations are:
The best way to solve this, is using graph
Plot the following equations on a graph, and get the points of intersection:
From the attached graph, we have:
Substitute each of the values of x's and y's in the cost function to get the minimum cost:
The values of x and y that gives the minimum cost is:
and the minimum cost is:
Hence, the animal farm should buy 1.775 bags of soybeans and 1.575 bags of oats
