Paraba-What?
Is this equation linear or a quadratic?
y = x - 6(x + 7)
linear
Translate this:
-10x
-10 times something
What variable represents the slope?
m
54 + 32
86
Multiplying a value outside a parentheses by all terms inside a parentheses
distributive property
What's a parabola?
curved line
Translate this into Algebra:
8 less than 5 times the sum of a number and 11 is 14
5(x + 11) - 8 = 14
Name two rules to follow when solving equations:
inverse operations
combine like terms
distributive propoerty
divide on both sides
-24 - 13
-37
where a line crosses the y axis
y intercept
What value in the equation ax2+bx+c represents the y intercept?
c
"x" is the same thing as ___
1x
Simplify this expression:
18a4b9 (divided by) 10ab2
answer
3 x 5 - 13 + 5 (divided by) 2
4.5
the beginning or the bottom/top of a parabola
vertex
Find the vertex of this quadratic:
5x2 + 5x - 8
x = -0.5
y = -9.25
Translate this situation into an equation:
Tony already had 80 stamps in his collection, and then collected 20 stamps per month.
20m + 80
a2+b2=c2
Solve this equation for "b" in terms of "a" and "c."
b = square root of c squared minis a squared
estimate the square root of 41
6.4
rational
When you decrease the "a" value of a parabola, what happens to it?
A person exchanges 390 pennies for quarters, dimes, and nickels.
Write an expression that represents this situation.
25q + 10d + 5n = 390
Mr. Val will write this equation
answer
(62)3
46656
multiple inputs produce one output.
Is it a function or NOT a function?
Function