What is the y-intercept of the quadratic function f(x)=2x2+4x-5
Write your answer as an ordered pair
(0, -5)
What number should go in the blank?
x2-10x+____= 11+____
25
What is the axis of symmetry of the parabola f(x)=-4(x-3)2+5
x=3
When a quadratic function is in intercept form, how can the axis of symmetry be found graphically?
Plot the x-intercepts and find the middle
Find the average rate of change of f(x)=x2-9x+12 on the interval [2, 3]
-4
What is the vertex of the quadratic function f(x)=5(x-7)2+2
Write your answer as an ordered pair
(7, 2)
Solve by completing the square
x2+8x-9=0
x= -9, 1
What is the vertex of the parabola f(x)=(x+3)2-8
(-3, -8)
What are the x-intercepts of the function f(x)=x2-10x+24
Write your answer as an ordered pair(s)
(6, 0) and (4, 0)
Find the average rate of change of the function f(x)=x2-x-13 from x=0 to x=2
1
What are the x-intercepts of the quadratic function f(x)=(x+3)(x-2)
Write your answer as an ordered pair(s)
(-3, 0) and (2, 0)
Solve by completing the square
x2-2x-8=0
x=-2, 4
What is the axis of symmetry of f(x)=3x2-24x+45
x=4
What is the domain of the function f(x)=-1/2(x+15)2+42
All real numbers
What are the solutions to the system of equations? Write your solution as an ordered pair(s)
y=2x+8
y=x2+12x+32
(-6, -4) and (-4, 0)
What is the direction of opening of the quadratic function f(x)=2x2-3x+9
a is positive, so opens up
f(x)=(x+6)2-4
What is the vertex of f(x)=2x2-8x-7
(2, -15)
What is the range of the function f(x)=-1/2(x+15)2+42
(-∞ , 42]
What are the solutions to the system of equations? Write your solution as an ordered pair(s)
y=3x2+4x+1
y=x+1
(-1, 0) and (0, 1)
Determine if the quadratic function has a maximum or minimum f(x)=-(x+3)2-7
a is negative, so the parabola opens down
There will be a maximum
Write the function
f(x)=x2-8x+15 in vertex form
f(x)=(x-4)2-1
What is the minimum of f(x)=x2-2x+3
Write your answer as an ordered pair
(1, 2)
What are the transformations of the quadratic function f(x)=2(x+3)2-4
What are the solutions to the system of equations? Write your solution as an ordered pair(s)
y=x2+1
y-x=1
(0, 1) and (1, 2)