A line with a slope of 2 passes through the points (2,d) and (1,3). What is the value of d?

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

Simplify the expression. -2/5(10+15m-20n)

Write the expression 7x^3-28xy^2 as the product of 3 factors