Posted by Anonymous on Thursday, December 27, 2012 at 4:21pm.
A new skateboarder's ramp just arrived at Bungey's Family Fun Center. A cross sectional view shows that the shape is parabolic. The sides are 12 ft high and 15 ft apart. Write an equation that, when graphed, will show the cross section of this ramp.
Is this correct? y=16/75(x7.5)^2

Algebra 2  Steve, Thursday, December 27, 2012 at 4:26pm
If the vertex is at (0,0), you know that when x=±15/2, y=12
so, if y = kx^2
12 = k(15/2)^2, so
k = 12*4/225 = 48/225 = 16/75
y = 16/75 x^2
Now, if you don't want to consider negative values for x, then it would make sense to translate the vertex to (7.5,0), so you are correct.
Answer This Question
Related Questions
 Algebra 2 ..  1)When Twinkle Toes Tony kicked a football, it landed 100ft from ...
 physics  A skateboarder with mass ms = 42 kg is standing at the top of a ramp ...
 physics mechanical energy  A skateboarder with mass ms = 42 kg is standing at ...
 Physics  A skateboarder starts up a 1.0mhigh, 30∘ ramp at a speed of 7....
 physics  A skateboarder starts up a 1.30m high, 25.0° ramp at a speed of 6.70m/...
 AP Calc  The picture to the right shows the Ben Franklin Bridge which stretches...
 Physics  A skateboarder shoots off a ramp with a velocity of 5.7 m/s, directed ...
 Physics  A skateboarder shoots off a ramp with a velocity of 6.5 m/s, directed ...
 Physics  A skateboarder shoots off a ramp with a velocity of 6.5 m/s, directed ...
 physics  A skateboarder shoots off a ramp with a velocity of 6.8 m/s, directed ...
More Related Questions