I don't know what to do??
2 answers:
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The given equation is
It is given that , when x=0, f(x)=36
Substituting these values
So the missing value of a is 2 .
We need to find the direction the ball is moving, so wee have this parametric equation, namely:
The graph of this equation is given in figure below. So, we well substitute some values of t in the equation:
If t = 0
x = 4 and y = 3
P0(4, 3)
if t = 1
x = 3.08 and y = 5.52
P1(3.08, 5.52)
if t = 2
x = 1.16 and y = 5.72
P2(1.16, 5.72)
So, as shown in the figure, the answer is B. <span>counterclockwise </span>
The graph of this equation is given in figure below. So, we well substitute some values of t in the equation:
If t = 0
x = 4 and y = 3
P0(4, 3)
if t = 1
x = 3.08 and y = 5.52
P1(3.08, 5.52)
if t = 2
x = 1.16 and y = 5.72
P2(1.16, 5.72)
So, as shown in the figure, the answer is B. <span>counterclockwise </span>