Predicting Using Graphs Review Independent variable the x

Predicting Using Graphs Review: Independent variable- the x coordinate, the input (time will always be the independent) Dependent variable- the y coordinate, the output (need the x value to determine) Name the independent variable and the dependent variable. pairs. Then write two ordered 1. ) A woman who wears a size 8 shoe has a foot that is 10 inches long. 4 shoe has a foot that is 5 inches long. A woman who wears a size 2. ) A 5 minute overseas call to Paris costs $4. 50. A ten minute overseas call to Paris costs $8. 50.

Elaine is saving $12 a week to buy a new stereo. After 6 weeks, she has $97 saved. (w, m) a). independent variable: b). dependent variable: c). slope (rate of change): d). y-intercept: e). Write the equation of the line: f). How much money will she have saved after 10 weeks? g. ) What does the y-intercept represent? What does the slope represent?

A linear equation can be used to describe the length of a spring, y, when it is stretched by weight, x. A spring is 2 cm long when a 14 -g weight is attached and cm long when a 20 -g weight is attached. a). independent variable: b). dependent variable: c). slope: (write two points to help) d). y-intercept: e). equation of the line: f). How long is the spring when a 16 -g weight is attached?

A woman who wears a size 8 shoe has a foot that is 10 inches long. shoe has a foot that is 5 inches long. a. ) slope: (write two points to help) b). y-intercept: c). equation of the line: d. ) How long is a foot that is a size 7 shoe? A woman who wears a size 4

A 5 minute overseas call to Paris costs $4. 50. A ten minute overseas call to Paris costs $8. 50. a. ) slope: (write two points to help) b). y-intercept: c). equation of the line: d. ) How much does a 2 minute call to Paris cost? e. ) What does the y-intercept represent? What does the slope represent?