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3/17 WARM UP
By Jeanmarie Mullen
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Last updated over 4 years ago
2 questions
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The
roots
of a
quadratic equation
are the x-intercepts of the
graph
. They are also called
solutions
or
zeros
.
A quadratic equation has two roots if its graph has two x-intercepts
A quadratic equation has one root it its graph has one x-intercept
A quadratic equation has no real solutions if its graph has no x-intercepts.
1
1
Question 1
1.
Graph the equation: y = x
2
− 6x + 8.
Identify and label the axis of symmetry, roots, vertex, and y-intercept.
visibility
View drawing
Question 2
2.
The graph of the function f(x) = ax
2
+ bx + c is given below.
Identify the solution(s).
(answer format: #and#)