1) Enter the equation by pressing the "Y=" button on the left side and entering in "x^3 + 4x^2 + 14x + 20"
2) Press "GRAPH" on the right side
3) Press "2nd" "Calc/Trace" "2. Zero"
x^3 + 4x^2 + 14x + 20
use the root or zero feature of a graphing utility to approximate the zeros of the function accurate to three decimal places.
I do not know how to use the root or zero feature on my calculator. If someone could just explain how to do it that would be great.
I have a TI-83 calculator
6 answers
im sorry but what was the answer i don't have a ti-83 i have a cassio would u by any chance no how to do this
Use a graphing calculator to solve the equation in the interval from 0 to 2pi. Round to the nearest hundredth. EXPLAIN
4cos(t)=3
4cos(t)=3
To solve the equation 4cos(t) = 3, follow these steps:
1. Enter the equation into the calculator: Press the "Y=" button and enter "4cos(x)=3".
2. Set the mode to radians: Press the "MODE" button, scroll down to "Angle", select "Radian", and press "ENTER".
3. Graph the equation: Press the "GRAPH" button to see the graph of the equation.
4. Find the intersection point: Press the "2ND" button followed by the "CALC" button. Select option "5. Intersection". Move the cursor close to the intersection point and press "ENTER" three times.
5. Write down the answer: The calculator will give an approximate value of the intersection point. Round this value to the nearest hundredth. The answer should be in radians.
Therefore, to the nearest hundredth, the solution is t = 0.93 radians.
1. Enter the equation into the calculator: Press the "Y=" button and enter "4cos(x)=3".
2. Set the mode to radians: Press the "MODE" button, scroll down to "Angle", select "Radian", and press "ENTER".
3. Graph the equation: Press the "GRAPH" button to see the graph of the equation.
4. Find the intersection point: Press the "2ND" button followed by the "CALC" button. Select option "5. Intersection". Move the cursor close to the intersection point and press "ENTER" three times.
5. Write down the answer: The calculator will give an approximate value of the intersection point. Round this value to the nearest hundredth. The answer should be in radians.
Therefore, to the nearest hundredth, the solution is t = 0.93 radians.
solve the equation in the interval from 0 to 2pi. Round to the nearest hundredth. EXPLAIN
4cos(t)=3
4cos(t)=3
To solve the equation 4cos(t) = 3 in the interval from 0 to 2pi, follow these steps:
1. Divide both sides of the equation by 4 to get cos(t) = 3/4.
2. Use the inverse cosine function to get t = cos^-1(3/4).
3. Set your calculator to radians mode and find the value of cos^-1(3/4).
4. On most calculators, the inverse cosine function is accessed by pressing "2nd" and then "cos". Then enter 3/4 and hit "ENTER".
5. The calculator will give you an approximate value for cos^-1(3/4). Round this value to the nearest hundredth to get t.
6. Make sure your answer is within the interval from 0 to 2pi.
Therefore, to the nearest hundredth, the solution is t = 0.73 radians.
1. Divide both sides of the equation by 4 to get cos(t) = 3/4.
2. Use the inverse cosine function to get t = cos^-1(3/4).
3. Set your calculator to radians mode and find the value of cos^-1(3/4).
4. On most calculators, the inverse cosine function is accessed by pressing "2nd" and then "cos". Then enter 3/4 and hit "ENTER".
5. The calculator will give you an approximate value for cos^-1(3/4). Round this value to the nearest hundredth to get t.
6. Make sure your answer is within the interval from 0 to 2pi.
Therefore, to the nearest hundredth, the solution is t = 0.73 radians.
2 answers