2/26/2024 0 Comments Negative slope word problemsThat is where Sal has miles/units = gallons Gallons left = Starting gallons minus gallons usedĬool, so how do we figure out gallons used? All we know is that she drives m miles and we are told in the formula we are given that in the spot where we need gallons used we have miles divided by 32 somethings It says that the number of gallons left equals the total number held by the gas tank (15 gallons) minus a strange expression, m/32 The equation gives GALLONS left in her car. From the slope, we can see that every minute or change in x by 1, the car is traveling 2 miles or changing y by 2 miles. Slope is then calculated as 10miles / 5 minutes or 2 miles/minutes. On that interval, the change in y is (20 miles - 10 miles) and change in x is (15 min - 10 min). Slope is change in y divided by change in x. For example, if a car is at 10 miles from a house in 10 min and at 20 miles from a house at 15 min, then our interval of x values is 10 min - 15 min. We would divide that difference by the difference between the interval of x values we used. Assuming the graph is a straight line, if we want to find the slope we would find the difference between 2 y values on an interval of x values. We know that distance is dependent because time determines how much distance something will travel. Let's say that we have a graph of distance (y) and time (x). This simply means that if you have one variable that is dependent (y) on an independent variable (x), then the slope is given as change in y divided by change in x. Slope in math is defined as the rate of change of the y variable as x changes.
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