Factoring
Multiply (x+3)(x-3)
x2-9
What is 58x23
1,334
When would an a-value be negative (-a)?
When there is a reflection.
What kind of correlation does a scatter plot have if it is going in a downward direction?
Negative Correlation
What is the third planet from the sun?
Earth
What are two numbers that add to -20 but add to -1?
-5 and 4
Subtract and combine like terms
(4a-3) - (2a+5)
2a-8
What is the axis of symmetry of a parabola that has a vertex of (1,9)?
The axis of symmetry is x=1
What direction does a scatter plot with no correlation go?
No direction, pattern, trend.
What is the probability (%) that at least two people in a room of 23 will share the same birthday?
50%
What is the GCF of 6, 36, and 72?
6 is the GCF of 6, 36, and 72
An exponential function with a base of 1/2 would have a growing of decaying graph?
Decaying- because the base is a fraction.
When a parabola gets skinny, is it a vertical stretch or vertical shrink?
Vertical stretch
What kind of a relationship would a scatter plot have if the correlation coefficient is 0.96?
When was RHS built?
1956
Factor:
x2-5x+6
(Hint AC method)
(x-2) (x-3)
Combine like terms:
(3x2+5) + (7x2-8)
10x2-3
How do you find the x-intercepts on a quadratic function?
Find the points where the parabola crosses the x-axis.
What kind of correlation do the variables age and height have?
Positive correlation. Age increases, height increases
What's Ms. G's cats name?
Tommy and Baby
Factor:
x2+6x+8
(Hint, use AC method)
(x+2) (x+4)
Simplify:
√x3y4z2
xy2z√x
Write an equation for a parabola that went down 2 units and right 3 units.
2= (-k), 3=(-h)
y=(x-3)2-2
What is a line of best fit?
What year did Michigan become a state? Bonus points if you give me the month.
January, 1837