What direction does this parabola open?
y=-x2+3x+10
(2x2+3x-7)+(3x2-4x-10)
5x2-x-17
At a festival, pumpkins are launched with large catapults and air cannons. On one launch, the height of a pumpkin in feet above the ground after t seconds is modeled by h=40+120t-16t2
From what height was the pumpkin launched?
40 feet
Factor the following Quadratic Equation
x2-16=0
(x+4)(x-4)
Solve the following Quadratic Equation
x2-16=0
x=-4 and x=4
Name a real world application of quadratics.
examples: anything launched or shot into the air, dimensions when determining area of a square or rectangle, ________
What is the y-intercept of the following quadratic?
y=3x2-12x+10
(0,10)
(5x2-12x+1)-(2x2+3x-7)
3x2-15x+8
The length of a rectangle is 7 more than the width. If the area of the rectangle is 60 square inches, what are the dimensions of the rectangle?
5 inches by 12 inches
Factor the following Quadratic Equation
x2+7x+10=0
(x+5)(x+2)
Solve the following Quadratic Equation
x2+7x+10=0
x=-5 and x=-2
What is Aladdin’s monkey friend called?
Abu
What is the vertex of the following function?
y=(x-4)(x+2)
(-1, -5)
Simplify the product of (3x-5)(x-8)
3x2-29x+40
At a festival, pumpkins are launched with large catapults and air cannons. On one launch, the height of a pumpkin in meters above the ground after t seconds is modeled by h=6+5t-t2
How long was the pumpkin in the air?
6 seconds
Factor the following Quadratic Equation
x2-8x+15=0
(x-3)(x-5)
Solve the following Quadratic Equation
x2-2x-15=0
x=-3 and x=5
How many colors are there in the rainbow?
7
What are the roots of the quadratic?
y=2x2-12x+10
x=5 and x=1
Simplify the product of (2x-4)(x+3)
2x2+2x-12
A flare is lunched up with an initial velocity of 64 feet per second from the top of a 200 foot building. The equation h(t)=-16t2+16t+96 models this situation. Determine the maximum height of the flare and the time it takes to reach that maximum.
100 feet in 0.5 seconds
Factor the following Quadratic Equation
10x2+17x+3=0
(2x+3)(5x+1)
Solve the following Quadratic Equation
9x2-9x-18=0
x=-1 and x=2
What is the quadratic equation for the parabola below?
y=-x2+2x+3
What are the x-intercepts of the following function?
y=-x2+3x+10
x=-2 and x=5
Simplify the product of (3x-4)2
9x2-24x+16
At a swim meet, Janet dives from a diving board that is 20 feet high. Her position above the ware is represented by the equation y=-16x2+12x+40, where x represents the time in seconds and y represents the height above the water. After how many seconds does Janet enter the water?
2 seconds
Factor out -4
y=-4(4x2-3x-10)
y=-4(4x+5)(x-2)
x=-5/4 or x=2 (only 2 is positive)
The area of a rectangle is represented by the equation 3x2+17x+10. Find the dimensions of the rectangle in terms of x.
(x+5)(3x+2)
Solve the following Quadratic Equation
2x2+5x-3=0
x=-3 and x=1/2
What is the 6th digit in pi?
3.1415926535