The domain of (x+1)/(x^2 + 2x - 3) is a. all real numbers
b. all real numbers except 1 and -3.
c. all real numbers except -1.
d. all real numbers except -3, -1, and 1.
e. all real numbers except -3.

Choose the graph that matches the following system of equations: 7x + 2y = −6 6x − 7y = 21 a line includes points negative 2 comma 4 and 0 comma negative 3. a line includes points 6 comma 2 and 0 comma negative 3 a line includes points 0 comma negative 3 and 6 comma 2. a line includes points negative 2 comma 1 and negative 3 comma 4 a line includes points 0 comma negative 3 and negative 1 comma 4. a line includes points 0 comma negative 3 and negative 1 comma 3 a line includes points 0 comma 3 and negative 1 comma negative 3. a line includes points 0 comma negative 3 and negative 2 comma 4.

Sketch one cycle if the cosine function y=2cos2theta

What is the point of inflection for the function f(x)=2cos4x on the interval (0, pi/2)