0
2(x - 2)(x + 4) = 0
x = 2, -4
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Find the solutions for 4x squared plus 4x plus 1 equals 0?
x = -½
What is the vertex of y-2x2-4x-5?
2x2= 4
Solve the system of equations Enter your answer as an ordered pair 4x plus 8y equals 16 4x minus 8y equals 0?
16
What is the ordered pair for 2y equals 4x-16 and 5y equals 4x plus 8?
2y = 4x - 16 5y = 4x + 8 Subtract the first equation from the second: 3y = 24 so that y = 8 Substitute this into the first equation: 16 = 4x - 16 ie 32 = 4x so that x = 8 So the solution is (8, 8)
Use the T table to determine 3 solutions to this equation 4x - 2y equals 8?
using the t-table determine 3 solutions to this equation: y equals 2x
How do you write y equals 2xsquared plus 4x-7 in function notation?
f(x) = 2x2 + 4x - 7
Solve 2x2 plus 4x-9 equals 0?
2*2+4x-9=0 4x=9-4 4x=5 x=5/4
Find the solutions for 4x squared plus 4x plus 1 equals 0?
x = -½
What is the vertex of the parabola y-2x2-4x 4?
Assuming the missing symbol there is an equals sign, then we have: y - 2x2 - 4x = 4 We can find it's vertex very easily by solving for y, and finding where it's derivative equals zero: y = 2x2 + 4x + 4 y' = 4x + 4 0 = 4x + 4 x = -1 So the vertex occurs Where x = -1. Now we can plug that back into the original equation to find y: y = 2x2 + 4x + 4 y = 2 - 4 + 4 y = 2 So the vertex is at the point (-1, 2)
What is the substitution of4x plus 4y equals 16 and y equals 5?
4x+4y=16 y=5 4x+ 20=16 4x=-4 x=-1
How do you solve -4x-4 equals -16?
-4x-4 equals -16. Add 4 to both sides; -4x equals -12. Divide both sides by -4; x equals 3.
Solve 4x equals 16?
4x = 16Divide each side of the equation by 4:x = 4
8x plus 9.16 equals 4x plus 16?
8x + 9.16 = 4x + 16 8x - 4x = 16 - 9.16 4x = 6.84 x= 1.71
How many solutions does x2-4x plus 4 equals 0 have?
It has two equal solutions of 2
What is the vertex of y-2x2-4x-5?
2x2= 4
What is the solution to 4x-8 equals 16?
4x - 8 = 16 Add 8: 4x = 24 Divide by 4: x = 6
What is 4x subtract nine equals seven?
4x - 9 = 7 4x = 16 x = 4
