8.FN.7
Interpret and explain the meaning of the rate of change (slope) and y-intercept (initial value) of a linear relationship in a real-world context.
Example Problems
Connor owes money on a car loan.
He pays $200 each month. After 5 months, he still owes $6400.
What was the original amount of Connor's loan?
He pays $200 each month. After 5 months, he still owes $6400.
What was the original amount of Connor's loan?
Maria is monitoring how quickly water flows into a large container from a hose.
W represents the volume of water in the container (in liters) after x seconds:
How many liters are poured every 5 seconds?
W represents the volume of water in the container (in liters) after x seconds:
How many liters are poured every 5 seconds?
Damien's puppy gains 0.4 kilograms each week.
After 7.5 weeks of steady growth, the puppy weighed 14.2 kilograms.
How much did the puppy weigh when Damien first got it?
After 7.5 weeks of steady growth, the puppy weighed 14.2 kilograms.
How much did the puppy weigh when Damien first got it?
Khan Academy ResourcesIntro to slopeSlope formulaSlope reviewSlope-intercept form reviewSlope-intercept introSlope from two pointsSlope-intercept from two pointsSlope from graphSlope-intercept equation from graphSlope from equationWorked example: slope from graphConverting to slope-intercept formSlope of a line: negative slopeWorked example: slope from two pointsSlope of a horizontal lineSlope & direction of a linePositive & negative slopeSlope from equationWorked examples: slope-intercept introIntro to slope
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