Question

Please help a student out.Thank you

Answer 1

`y = 6tan((x)/(2)) - 3`

Let y = 0, since the x-intercept occurs at y = 0.

`3 = 6tan((x)/(2))`

`tan((x)/(2)) = (1)/(2)`

`(x)/(2) = tan^(-1)((1)/(2))`

`x = 2tan^(-1)((1)/(2))`


`x = 0.927295218...`


`\text{General form: } x = 0.9273 + n\pi`

We know this because the tangential graph is period every pi radians. The sinusoidal and co-sinusoidal graph are periodic every 2pi radians.