Your calculator gives an answer of x=1.1578074156, y=2E-13 when using ROOT or ZERO in the graphing mode. Give the coordinates of the x-intercept your calculator has given you to the nearest thousandth. <<< ? I have no idea how to solve these. Someone please explain this! Thanks!
2E-13 on most calculators means
2.0 x 10^-13 which for all practical purposes is zero.
1.15780.. to the nearest thousandth is 1.158
So what is the x-intercept ?
To find the x-intercept of the given equation, which is the value of x when y is equal to zero, we need to use the given answer of x=1.1578074156 and y=2E-13.
In this case, the notation "2E-13" means 2 multiplied by 10 raised to the power of -13, which can be written as 2 × 10^(-13). This is a very small number in scientific notation.
Since we want to find the x-intercept when y is equal to zero, we know that y is already very close to zero. We can consider it as zero for simplicity.
Therefore, the x-coordinate of the x-intercept is approximately 1.1578074156.
To round this value to the nearest thousandth, we keep only the first three decimal places:
x-intercept ≈ 1.158
So the x-intercept, rounded to the nearest thousandth, is approximately 1.158.