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Homework 4 Quadratics
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Q1)
Which of the quadratics above shows
y = x
2
- 6x + 5
?
What is the discriminant of this quadratic?
Q2)
Which of the quadratics above shows
y = 3x
2
+ 12 x + 14
?
What is the discriminant of this quadratic?
Q3)
Which of the quadratics above shows
y = -2x
2
- 16x -34
?
What is the discriminant of this quadratic?
Q4)
Which of the quadratics above shows
y = x
2
- 10x + 19
?
What is the discriminant of this quadratic?
Q5)
y = 2x
2
+ 16x + 22
write in the form:
A =
B =
C =
The turning point is at:
x =
y =
Q6)
y = 4x
2
+ 6x + 2
write in the form:
A =
B =
C =
The turning point is at:
x =
y =
The discriminant of this quadratic is:
The roots of the quadratic are:
x
1
=
x
2
=
The line
y =
–
3x+2
meets the quadratic in two places. Find both:
x
1
=
x
2
=
y
1
=
y
2
=
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