0
y=2x2 + 3x-1
To find the zeros of this equation (when y=0) set the equation = 0
0=2x2 + 3x-1
Now, you can either graph the equation in a graphing calculator and find the x intercepts (where the function crosses the x-axis and y=0) or you can factor the quadratic equation by "smiling" or reverse foiling. However, this equation cannot be easily factored. Therefore, using a graphing calculator will provide the correct answer of x= -1.780776 and x= 0.28077641
You can also use the quadratic formula
where the general form of a quadratic equation is ax2 +bx+ c=0=y
In order to use the quadratic formula, you simple plug the corresponding values into the x= equation. This will produce the same results as graphing and finding the x intercepts.
Add your answer:
Earn +20 pts
5x plus 3y equals 13 as a ordered pair?
If 5x plus 3y equals 13, the x equals 2 and y equals 1. This is because 5x2=10 and 3x1=3, and 10+3=13.
What is y plus y plus y plus y equals?
4y
If 3 plus y equals a 3-y equals a then a equals y equals?
a = 3 and y = 0
3x plus y equals 4 x plus y equals 0?
x = y = 0 ?
What does y plus y equals?
-17 + y,,must be equals to..-17y..
-y equals 4x plus 1 4x plus y equals 2?
2
Which equation has the steepest graph y equals 7x plus 3 y equals -2x plus 6 y equals -10x - 4 y equals 8x - 1?
y=-10x-4
2x plus y equals -6 3x plus y equals -10?
x = -4 and y = 2
Y equals -4x plus 12.5 y equals 25x plus 4?
x=.293 y=11.328
If x plus 2 equals y and y equals 16 what is the value of x plus y?
x = 14
X plus y equals 10 and y equals x plus 8?
(1, 9)
Y-8x plus 9y equals?
Y-8x plus 9y equals 10y-8x.
