Knowledge on quadratics
which looks like a smile face y= x2 or y=-x2
y=x2
Factor the following quadratics completely:
x2-9x+14=0
(x-7)(x-2)
Solve the following by expanding (x+2)(x+3)
x2+5x+6
What is a conjecture
Something they assume is true that has not been yet proven.
What country is currently ranked no.1 for men's and women's volleyball?
Poland - M.
Italy - W.
What does the +c do in y=mx+c
Factor the following quadratics completely:
x2+7x-8
(x+8)(x-1)
Solve the following by expanding (x-3)(x-2)
x2-5x+6
In y=3x+4, is 4 the gradient or the y-intercept?
The y-intercept
How many cards are in a standard deck (exc. the Jokers).
52
How do I know if two lines are parallel or perpendicular?
Parallel gradients are equal.
Perpentidular gradients equal -1 when multiplied together.
Factor the following quadratics completely:
x2-x-20
(x-5)(x+4)
Solve the following by expanding (2x+2)(x-3)
2x2-4x-6
True or False.
In ax2+bx+c if a becomes larger, does the quadratic become narrower.
True
What is QLD's longest winning streak in the State of Origin?
2006 - 2013, 8 years.
what are the three letters in the quadratic formula
a b c
Factor the following quadratics completely:
x2-5x+4
(x-4)(x-1)
Solve the following by expanding 2xy(3-2x)
6xy-4x2y
If Todd invests $5000 at 3% p.a. for 7 years, what will his investment be worth? (To the nearest dollar)
$6149
Only two mammals (Monotreme) on Earth lay eggs. Both are found in Australia. What are they?
Platypus and Echinda (4 species).
If i change a quadratic from y=x2 + 4 to y=x2 + x + 4. How does the graph move
it moves left and down slightly.
Factor the following quadratics completely:
30x2+18x-84
6(5x-7)(x+2)
Solve the following by expanding (x+1)(x+2)(x+3)
x3+6x2+11x+6
If Jackson invests $2000 at 10% p.a, compounding 6-monthly. How much will it be worth after 4 years? (to nearest dollar)
$2955
What was Ada Lovelace known for in the world of mathematics?
Considered the first computer programer.