Quadratic Equations
What is Standard form?
x-intercepts of y=(x-4)(x+6)
(4,0) and (-6,0)
Miss Diluzio can teach this subject...
What is Math?
y=(x-2)(x+4) in standard form
What is Y=x2+2x-8?
Y-Intercept of Y=x2+4x-5
-5
Y= a(x-r)(x-s) is a quadratic in this form....
What is factored form?
X-intercepts of Y=(x-4)(x-5)
What is (4,0) and (5,0)?
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What is Alfredo?
expand: x(x-2)+4
x2-2x+4
Y-intercept of y=x2+5x+9
9
(x-r)(x-s) can be set equal to zero to find this portion of a quadratic
What are zeros/x-intercepts/roots?
You do this to find x-intercepts of a quadratic equation
What is Factoring?
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Who is Taylor Swift?
you do this to go from factored form to standard form
What is expand/FOIL
How to find the y-intercept algebraically
set x=0 and find y
The letter that represents the y-intercept in standard form
X-intercepts of y=x2-6x+8
(x-4)(x-2)
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What is Brock University?
When a quadratic has one zero/x-intercept what does that tell us?
The x-intercept/zero is also the vertex
y-intercept of y=-2x2+6x-18
-18
y= a(x-h)2+k is a quadratic in this form....
What is Vertex form?
x-intercepts of y=4x2-16
4(x2-4)
=4(x-4)(x+4)
What is (-4,0) and (4,0)
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Pasta or Sushi
write y=2(x-4)(x-2) in standard form
Y=2x2-12x+8
y-intercept of y=2(x-4)(x+1)
-8