Vocab
Define a y-intercept:
Its the point where the function crosses the y-intercept.
Describe whether 3 or 9 unit goes up and which one goes left in this vertex form:
3 goes up and 9 goes left.
What is the vertex of the function g(x)=4(x-2)2+8
The vertex are (-2,8)
What is a Quadratic Function written in standard form?
ax2 + bx + c
Define x-axis
Point where function crosses x-intercept
find f(x) where 7 units go down and 4 goes to the right.
f(x)=a(x-4)2+7
What is the y-intercept for the function f(x)=4(x-2)2-4
The y-intercept for this function is (0,12)
Find the y - intercept in the equation f(x) = x2 - 3x - 3.
-3 is the y - intercept.
What is a coefficient ?
A number in front of a variable.
find f(x) where 8 units go to the left and 4 units go down.
f(x)= a(x-8)2+4
find the x-intercept of the function g(x)= 2(x-4)2-8
The x intercept are (2,0) or (6,0)
Find the vertex in the problem x2 - 6x + 15
(3,2)
What is a square root?
A number when multiplied by itself gives the original number of the square root you are looking for.
find f(x) where -2 units go down and -6 units go to the right.
f(x)= a(x+6)-2
What is the line of symmetry in this function f(x)= 2(x-4)2-8
The linen of symmetry of this function is 4.
Find both the vertex and y - intercept for 3x2 + 6x
Vertex (-1, -3) and y intercept is 0.
A function is an algebraic relationship between two variables. An example is f(x) or y.
Is this function stretched or compressed: f(x)= 1(x-2)-2
It is none!
Graph 3x2 + 6x - 2
Show Graph: Vertex (-1,-5) y - intercept -2.