Graphing Using Data

Look at the table below. Write an equation to match the pattern between m, minutes and bubbles blown, b.

• b = 12(m)

• b= m +12

• b = m ÷ 12

• none of these

Write the equation.

• f(x) = -5x + 1

• f(x) = x + 5

• f(x) = -2x

• f(x) = -5x + 6

Write the equation.

• f(x) = 3x - 7

• f(x) = 3x - 1

• f(x) = 3x - 4

• f(x) = 2x + 3

Find the value of y when x = 2.

• 2

• 6

• 7

• 8

Find the missing OUTPUT value.

Find the 2 missing OUTPUT values.

• -8 & -12

• 8 & 12

• -8 & 12

• 8 & -12

Find the missing y value.

The relationship ship between a woman's show size and length of her foot, in inches, is given in the table.

Calculate the line of best fit using the graphing calculator.

• a = .25 and b = 7.75

• y = .25x + 7.75

• r = 1

• y = ax + b

As shown in the table, a person's target heart rate during exercise changes as the person gets older. Use the graphing calculator to find the correlation coefficient (r).

• -0.999

• -0.664

• 0.998

• 1.503

What is the correlation coefficient of the data characteristics shown?

• -.928

• .928

• .861

• -.861