Answer:
its one solution
Step-by-step explanation:
Answer:
ok
Step-by-step explanation:
<span>
1. y=-4x+5
2. y=3x-8
3. Roberta had $50 before she started to save money each week.</span><span>
</span>
Where's the so-called "parabola tool?"
The vertex is relatively easy to find. Find the midpoint of the segment of the x-axis connecting x=2 and x=6; it is x=4. Then evaluate the function at x=4:
f(4) = (4-2)(4-6) = 2(-2) = -4. The vertex is at (4,-4).
Plot (4,-4). Then (arbitrarily) let x=0 and find y: f(0) = y = (-2)(-6) = -12.
So, when x = 0, y = -12.
Plot this point (1, -12). realize that the parabola is symmetric about the line x=4. (1,-12) is 3 units to the left of the axis of symm, and thus another point on the parab. is 3 units to the right of this axis, x= 7. Plot (7,-12). Now draw the parabola thru (7,-12), (1, -12) and (4, -4). The parab. opens up.
I think it would be A. It controls how much we pay for goods and services, because if there is a high demand, and a limited supply, the cost will be high, if there is a large supply but low demand, then the cost will be lower.
