Definitions
Another word for "rise over run"
slope
The slope of the equation y=5x-6
5
$50 earned in 2 hours
$25 per hour
Another word for the rate of change in a word problem
Slope
The inequality symbol ">"
greater than
The point where a line crosses the y-axis
y-intercept
The y-intercept of the equation y=1/3x+2
2
750 items produced in 50 minutes
15 items produced per minute
Another word for the starting (or initial) value of a problem
y-intercept
Solve: 5-2x=13
x = -4
The point where a line crosses the x-axis
x-intercept
The slope of the equation y=-9+1/2x
1/2
Decrease of 27 degrees in 9 minutes
-3 degrees per minute
The cost of an ice cream sundae with different numbers of toppings (x) is represented by: y=2.25+0.75x The cost per topping
$0.75
The set of all input (x) values of a function
domain
The slope of a horizontal line
zero
The y-intercept of the equation y=0.25x-7
-7
Michael's salary increased from $49,000 to $58,000 in three years
$3,000 per year
The cost of a pizza with different numbers of toppings (x) is represented by: y=0.95x+7.00 The initial cost of the pizza (with 0 toppings)
$7.00
The set of all output (y) values of a function
range
The slope of a vertical line
undefined
The slope of the equation y=4
zero
The temperature increased from 70 degrees to 78 degrees from noon to 4pm
2 degrees per hour
The equation shows the cost to attend the fair if you ride r rides: C=5+1.75r The rate of change in the problem
$1.75 per ride
A relation in which each input (x) value corresponds to exactly one output (y) value (No input (x) values are repeated)
function