What is the discriminant of the quadratic equation -x2 – 9x + 1 = 0?

A. 90 degrees b. 45 degrees c. 30 degrees d. 120 degrees

Given the following linear function sketch the graph of the function and find the domain and range. ƒ(x) = -5x + 4

Use a calculator to verify that σ(x) = 62, σ(x2) = 1034, σ(y) = 644, σ(y2) = 93,438, and σ(x y) = 9,622. compute r. (enter a number. round your answer to three decimal places.) as x increases from 3 to 22 months, does the value of r imply that y should tend to increase or decrease? explain your answer. given our value of r, y should tend to increase as x increases. given our value of r, we can not draw any conclusions for the behavior of y as x increases. given our value of r, y should tend to remain constant as x increases. given our value of r, y should tend to decrease as x increases.