F(x) = 4x^2+2x +6

What is the value of the discriminant of f?

How many distinct real number zeros does f have?

The mean of a set of data is -3.82 and its standard deviation is 2.31. find the z score for a value of 3.99.

Iam trying to solve a linear equation for the shoe size of someone 84" tall taking into consideration example 1 is 69" tall with a shoe size of 9 and example 2 is 72 inches tall with a shoe size of 11. i understand that the equation should be y=mx+b and that on the graph the answer is (3,2) but i just don't understand how to create the equation to solve for 84-inches and 60-inches tall questions. after two days, i need .

Multiply. write your answer in simplest form. 3/8 x 5/7