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39 Cards in this Set
- Front
- Back
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Lines will NOT intersect at all |
Parallel lines NO SOLUTION |
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Lines intersect at ONE point |
One solution |
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Lines ON TOP of each other |
Infinite Solutions |
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Slope |
Rise / run |
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y2 - y1 / x2 - x1 |
Slope formula |
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y = mx + b |
Slope standard form |
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DIRT |
D = rt |
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Domain |
Inputs or the X values |
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Range |
Output or the Y values |
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Line of best fit |
Drawn through scatterplots to describe relationship between two variables (x,y)
Reflects the trend |
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x0 |
Y intercept aka b |
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k |
Rate of slope aka m |
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y= kx + x0 |
Linear growth |
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y = x0 (1 + r) ^ x |
Exponential equation |
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Standard Deviation |
How far a typical data point is from the mean.
High means spread out. Low means close. |
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Margin of Error |
Max difference between true value and random sample value |
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Skewed to the LEFT |
Tail is longer on left side |
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Skewed to the RIGHT |
Tail is longer on right side |
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Probability |
# desired outcomes/ # total possible outcomes |
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a^b x a^c = |
a ^ (b+c) |
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a^b / a^c = |
a^ (b-c) |
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(a^b)^ c = |
a^ (bc) |
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a^ -b = |
1/ a^b |
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Simple zero |
Occurs once in a polynomial |
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Important for long division |
Don't forget place holders |
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Work = ? |
W= rt |
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f(x) |
Dependent variable output aka y |
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k |
Rate of change/ slope aka m |
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f(x) = kx + f(0) |
Standard form linear equation |
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f(0) |
y intercept or b |
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g(x) = g(0) (1+ r)^x |
Growth or decay formula |
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(f+g)(x) = |
f(x) + g(x) |
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(f-g)(x) = |
f(x)- g(x) |
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(fg)(x) = |
f(x) • g(x) |
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(f/g)(x) = |
f(x) / g(x) |
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(f o g)(x) = |
f(g(x)) |
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y= ax^2 + bx + c |
y intercept is c |
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y= a(x-m)(x-n) |
Solution = m and n X intercepts |
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y = a(x-h)^2 + k |
(h,x) is vertex |
