book Maths Puzzle Numerical Ability

Ok can you help me with this one?
"Use the discriminant to determine whether the vertex of the graph of the function 6x^2-2x+4 below lies above, below, or on the x-axis."

Read Solution (Total 0)

book Other Question

the sum of the digits of a 2 digit number is 9. if the number is doubled than decreased by by 36, the answer is the original number with the digits reversed. Find the number. You m A baseball is hit. Its heigh above the playing field is measured by a sensor. Write an equation to describe the curve of best fit for the data collected by the sensor.
Time, x (s