determine whether each function has a min or max value and find that value
f(x)=5-4x-2x^2
max=7
100
simplify √ ̅-81
9i
100
solve the equation by using the square root property
x^2+12x+36=6
{-8.45,-3.55}
100
write this function in vertex form y=-4x^2-24x-15
y=-4(x+3)^2+21
100
solve the equation by using the quadratic formula
solve the equation by completing the square
x^2+12x-9=0
x=-6+3√ ̅5
x=-6-3√ ̅5
200
determine whether the function has a min or max value and find that value
f(x)=x^2+12x+27
min=-9
200
simplify i^40
1
200
solve the equation by using the square root property
x^2+18x+81+15
{-12.87,-5.13}
200
write this function in vertex form
y=x^2+2x+7
y=(x+1)^2+6
200
solve the equation by using the quadratic formula
10x^2-3=13x
(1.5, -0.2)
300
state the domain and range of the function
f(x)=-5^2+4x-8
domain= all real numbers
range= f(x)≤-7.2
300
simplify i^40
x=3 x=-1
300
solve the equation by using the square root property
3x^2-6x-9=0
x=3 x=-1
300
write the function in vertex form
y=-x^2-4x-1
y=-(x+2)^2+3
300
Find the value of the discriminant.
6x^2+5x-1=0
49
400
use the quadratic equation to find two real numbers that satisfy each situation, or show that no such number exist
Their sum is -8 and their product is -209
11 and -19
400
find the values of x and y that make the equation true
(2a-4b)i+a+5b=15+58i
{-0.89,5.39}
400
solve the equation by completing the square
x^2-10x+29=0
{5-2i, 5+2i}
400
Write the function in vertex form.
y=x^2-6x+3
y=(x-3)^2-6
400
Find the discriminant of x^2+2x-4=-9
-16
500
determine the solution(s)
-x^2-8x-16=0
-4
500
find the sum of ix^2-(4+5i)x+7 and 3x^2+(2+6i)x-8i
(3x+i)x^2+(-2+i)x-8i+7
500
find the value of c that makes the trinomial a perfect square. then write the trinomial as a perfect square
x^2-3.2x+c
2.56; (x-1.6)^2
500
Graph the function.
y=9x^2-8
photo
500
Find the exact solutions by using the quadratic formula.
5x^2+8x=0