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Grade 9 Math


what is the formula for the volume of a cube? length × width × hight
what is the formula for curcumfrence of a circle? πr² or πd (π = pi)
What is the surface area formula for a sphere 4(πr²)
How do you figure out if a pattern is an exponential relation? repeated multiplication (y=3ⁿ)
How do you fiqure out if a pattern is a quadratic relation? there is no pattern (y=x³)
How do you fiqure out if a pattern is a linear relation repeated addition (y=3x)
What is first difference? differences between y values in a table of values that has evenly spaced x values.
What is slope? steepness of a line rise/run
What is continous data? variable real numbers (speed, temperature, ect..) usually used with a connected line if graphed
What is discrete data? variable whole number (students, pages, ect..) usually has points on a graph instead of connected lines
Created by: Natasha C