Quadratic Equations
What is the vertex form?
y=a(x-h)2 +k
(ab+12)(ab-12)
What is the range of the relation {(-2,2),(-6,4),(-3,5)}?
{2,4,5}
(x4)3
x12
Solve using substitution {8x+3y=-9}
{6x - y=-23}
(-3,5)
x2-2x-15
x= {-3,5}
y2 + 81
prime
What is the domain of the relation below? (graph on desmos)
x=-(y)2+ 3
x ≤ 3
3-2/x-4
x4/9
20y>-5+18y
y> -5/2
Write an equation of the function y=x2 that is vertically compressed by 1/2, translated 3 units right, and 2 units up
y=1/2(x-3)+2
32x2 - 18y2
2(4x+3y)(4x-3y)
Is the graph of a sideways "W" a function?
No
(6x0z-2)/(3-1y5)
18/y5z2
Ava has 37 coins, all nickels, and dimes in her wallet. The value of the coins is $3.10. How many dimes does Ava have?
25 dimes
Find the value of x from a (x+1) by (x-4) rectangle if the area is 14 square feet
x=6
6w(3w2-2w)+ 2w(-4w2+4w)
10w3 - 4w2
What is the equation of these ordered pairs?
(2,-4),(4,-3),(6,-2),(8,-1),(10,0)
y = 1/2x -5
(2x-3)2 (x4y2)5
4x14y10
Solve using elimination. {7x=3y+45}
{4x+5y=16}
(6,-1)
A phone is dropped from a 5-foot platform and the path that the phone takes can be modeled by the equation h= -16t2 + 144. How long will it take for the phone to reach the ground?
3 seconds
(18a3b2 - 6a2b + 3ab) / (3ab)
6a2b-2a+1
If f(x)= -x2 + 4x find f(4)-2
-2
(43x2y0)/(45xy3)
x/16y3
Sally makes $8 an hour giving soccer lessons and $6 an hour dog walking. One weekend, she worked 10 hours and made $68. How many hours did Sally walk the dogs?
6 hours