What statements describe the properties of a plane? select three options.

Explain why the function is discontinuous at the given number a. (select all that apply.) f(x) = 1 x + 1 a = −1 f(−1) is undefined. lim x→−1+ f(x) and lim x→−1− f(x) exist, but are not equal. lim x→−1 f(x) does not exist. f(−1) and lim x→−1 f(x) exist, but are not equal. none of the above

If a line is defined by the equation y = 5x + 2, what is the slope?

Solve the system of equations using the substitution method. {y=−3x+7x=−2y−16 enter your answers in the boxes.