These are the equations i used:
r=theta
r=dsin etheta
r=20sin 20theta
r=2theta
r=3theta
r=theta
r=dsin etheta
r=20sin 20theta
r=2theta
r=3theta
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float sinVal;
int toneVal; int k=0; void setup () { pinMide(8,OUTPUT); } void loop () { while (k<2000){ for (int x=0;x<180;x++) { sinVal = (sin(x*(3.1412/180))); toneVal=2000+(int(sinVal*1000)); tone(8.toneVal); k++; delay(2); }} for (int x=0;x<180;x++) { sinVal = (sin(x*(3.1412/180))); toneVal=2000+(int(sinVal*1000)); tone(8,toneVal); delay (5); } } https://drive.google.com/a/slsharks.net/file/d/0B6Ep8JcC1gm_eFpBYUtWSFZtMEU/view To use this you figure out the angle. You can use it to find that the sin it the y value and the cos. would be the same as the x value. For tan. it is the y value flipped and multiply by the x. You also can figure out the radians based on the
By using synthetic division with the zeros you find in graphing a polynomial you can simplify the equation and then use the quadratic formula to find your remaining zeros.The degree of the polynomial tells you the number of zeros that you should find for that particular equation. It will always tell you the number of factors weather it is x^4 or x^2.
A. (21 inch Ramp) My prediction wasn't really close but it had the same concept. I believe this is because i was able to under stand that it would be increasing then decreasing but i wasn't sure how to calculate the rate at which this would be true.
(14 inch Ramp) My prediction was a lot closer but was to pointed at the Maximum, because i was once again off at the rate in which it was moving (7 inch ramp) My prediction was the best out of the three on this one. I was closer on getting the rate at which it increased/decreased. B. ( 21 inch ramp) Domain: [0,35) Range: [0, 65) ( 14 inch ramp) Domain: [0,37) Range: [0, 58) ( 7 inch ramp) Domain: [0, 16) Range: [0, 42) C. Zeros: all the same start; Maximum: decreases with each graph, because the highs at which the skateboard starts gets lower; Minimum: Stays relatively the same other then the 7 inch graph which stops at 16 seconds in. D. The Graph raised the fastest when the skateboard went down the ramp because it was gaining speed. The graph starts to decrease when it climbs the slant in the driveway because all its momentum is lost then gained again but forces it backwards. |
About meI am a Junior at St.Louis High School. Music is my passion and art is my own little paradise. Archives
April 2015
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