PLEASE HELP ME!!!!!!!!!!!!!
2007-09-22 08:19:24 · 4 answers · asked by adan b 1 in Science & Mathematics ➔ Mathematics
what exactly are you suppose to find? because just giving the equation isnt going to help others determine what exactly to answer...
2007-09-22 08:28:31 · answer #1 · answered by brownie_1111111 2 · 0⤊ 0⤋
hey! so im sure u learned about the whole "diamond" approach to solving this thing.. right? well anyways, it doesnt work for this problem. so theres this formula that i cant type.. but basically: x= -b plus or minus the square root of (b squared - 4ac) all divided by 2a. in this case.. a=1 (the first term of the problem, the imaginary 1 before the x2) b=-10 and c=40. so put those in the formula and just solve it. u'll get a messy number, but thats just how it comes out.
2007-09-22 08:47:50 · answer #2 · answered by mandie 2 · 0⤊ 0⤋
What is the question?
The function has no real factors; it has two imaginary roots.
The imaginary roots are x = 5 +/- i*sqrt(15).
The equation is a parabola with vertex at (5, 15). The parabola is concave up (like a U), and never crosses the x-axis. Its domain is all the reral numbers and its range is
y >= 15.
2007-09-22 08:32:36 · answer #3 · answered by ironduke8159 7 · 0⤊ 0⤋
What's the question?
y=x^2 -10x + 40
is a nice function which yields a value for y for any value of x you plug into the function
But what is the question?
2007-09-22 08:28:16 · answer #4 · answered by VampireDog 6 · 0⤊ 0⤋