How do you solve x^2-1=0 by graphing

Plz heeeeeeelp plz give me the answer

Find the required measurements of the following trapezoids. a = 8 cm b = 16 cm h = 10 cm

Which of the following describes the graph of y--4x-36 compared to the parent square root function? stretched by a factor of 2, reflected over the x-axis, and translated 9 units right stretched by a factor of 2, reflected over the x-axis, and translated 9 units left stretched by a factor of 2, reflected over the y-axis, and translated 9 units right stretched by a factor of 2, reflected over the y-axis, and translated 9 units left save and exit next submit