Find the x-intercept of the graph of the linear equation y = −1 2
x + 3.

x-intercept =

If cos(2x) = tan^2(y), show that cos(2y) = tan^2(x).

Astudent found the solution below for the given inequality. |x-9|< -4 x-9> 4 and x-9< -4 x> 13 and x< 5 which of the following explains whether the student is correct? -the student is completely correct because the student correctly wrote and solved the compound inequality. -the student is partially correct because only one part of the compound inequality is written correctly. -the student is partially correct because the student should have written the statements using “or” instead of “and.” -the student is completely incorrect because there is no solution to this inequality.

Me find the answer and explain the process to find the answer of the problem appreciate it : )