4.1
4.2
4.3
4.4-4.5
4.6-4.8
100
x;-2, -1, 0, 1, 2 y;16, 4, 0, 4, 16
y=4x squared? x;-2, -1, 0, 1, 2 y; ? ? ? ? ?
100
y=(x+3) squared+6= (x-3)(x-3)+6 = (x squared-3x-3x+9)+6 = x squared-6x+15
Write quadratic functions in standard form. y=(x-3) squared+6
100
=(x+5)(x+1)
Factor the expression. It may not be factorable. x squared+6x+5
100
(x+2)(x+3) =(2x+3)(x+1)
Factor the expression. It may not be factorable. 2x squared+5x+3 to the sixth
100
=11+i
Write the expression as a complete number in standard form. (6-3i)+(5+4i)
200
x= -b/2a= -6/2(3/2)= -2 minimum: f(-2)=3/2(-2)+6(-2)+4=-2
Tell whether function has minimum or maximum value. Find value. f(x)= 3/2x squared+6x+4 a>0; function has minimal value
200
cannot be factored
x squared+2x+4
200
cannot be factored.
4y squared-5y-4
200
x=4+ square root of 16-4(1)(-5) - ______________________________ 2(1) x= 4+6 x= 5; x= -1 - _________ 2
Use quadratic formula. x squared-4x-5=0
300
z squared-3z-54=0 (2-9)(2+6)=0 z=9; z=-6
Solve the equation. z squared-3z=54
300
4(5x squared+31x+6) =4(5x+1)(x+6)
Factor the expression. 20x squared+124x+24
400
=8x square root of 3/3.
8/square root of 3.
500
square root of 4x7. =2 square root of 7
Simplify the expression. square root of 28.
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