Vocabulary
Find the x value of the vertex in x²- 3x + 1 = 0
What is 3/2?
Name the x-intercepts.
y=2(x-2)(x+6)
What is (2,0) and (-6,0)?
y= x² +4
What is vertical shift upwards by 4 units?
Graph the function. Must include vertex, and at least one point on each side. y= x²
What is graph on board?
The vertex in the quadratic equation y = x² + 6x-3
What is (-3, -12)?
Name the x-intercepts
y=(x)(x-2)
What is (0,0) and (2,0)?
y= x² - 8
What is vertical shift downwards by 8 units?
Graph the function. Must include vertex, and at least one point on each side. y = -x²+2
What is graph on board?
When a quadratic equation is written in this form
y = ax² +bx + c
What is the standard form?
The axis of symmetry in the quadratic equation
5 x² + x - 1 = 0
What is x= -1/10?
Name the y-intercept.
y= x² - 4
What is (0,-4)?
y=3 x²
What is vertical stretch by a factor of 3?
Graph the function. Must include vertex, and at least one point on each side. y=-1/2x²
What is graph on board
This is the number before the x² that determines whether a parabola opens up or down.
What is the leading coefficient?
What you do after you have found the x value of the vertex to find the y value of the vertex
What is plug it into the original equation?
Name the y-intercept
y= x²- x - 2
What is (0,-2)?
-1/16 x² compared to the graph 1/16 x² +8
What is a reflection over the x axis and hasn't been shifted up by 8 units?
Graph the function. Must include vertex, and at least one point on each side. y=x²-8x+7
What is graph on board.
The formula used to find the x coordinate of the vertex in a quadratic equation
What is -b/2a?
Name the y-intercept. y= (x-1)² + 1
Which value in the quadratic equation does the y intercept correspond to: a,b,or c?
What is (0,1)? What is the c value?
I get 1/3x²-18 from the graph of x²-5
What is vertical shrink by a factor of 1/3 and vertical shift downwards by 13 units?
Graph the function. Must include vertex, and at least one point on each side. -x²-6x + 1 = 0
What is graph on board