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The population of Detroit was approximately 950,000 in 2000. The population of Detroit was

approximately 670,000 in 2020.
a. Complete this table based on the situation.
x( Population. )
define the variable
)
y Time
define the variable
2 known coordinates (x1,
b. Slope:
950.000
c. y-intercept:
2000
670.000
2020
y₁)=(98000,2000) (x2, y₂) = (6100003090)
d. Equation written in Slope-Intercept Form:
e. Using your graphing calculator or Desmos, sketch the graph of this situation. What is
the projected population of Detroit in 2025 if this trend continues?

1 Answer

5 votes

Answer: PLS READ BELOW FOR THE ANSWER AND THANK U FOR THE POINTS :) !!!!!!

Explanation:

a. To complete the table, we need to define the variables x and y based on the situation given. In this case, we can let x represent the time (in years) and y represent the population of Detroit (in thousands).

Using the given information, we can fill in the table:

```

x (Time) y (Population)

2000 950

2020 670

```

b. The slope represents the rate of change between two points on a line. To find the slope, we can use the formula:

```

slope = (change in y) / (change in x)

```

Using the coordinates (x₁, y₁) = (2000, 950) and (x₂, y₂) = (2020, 670), we can calculate the slope:

```

slope = (670 - 950) / (2020 - 2000)

= -280 / 20

= -14

```

Therefore, the slope is -14.

c. The y-intercept represents the value of y when x is equal to 0. In this case, the y-intercept is the population of Detroit in the year 2000, which is approximately 950,000.

d. The equation written in Slope-Intercept Form is given by:

```

y = mx + b

```

Substituting the slope (-14) and the y-intercept (950) into the equation, we have:

```

y = -14x + 950

```

e. To sketch the graph of this situation, we can plot the two known coordinates (2000, 950) and (2020, 670) and draw a straight line passing through them.

As for the projected population in 2025, we need to find the corresponding value of y when x is equal to 2025.

Using the equation y = -14x + 950 and substituting x = 2025, we can calculate:

```

y = -14(2025) + 950

= -28350 + 950

= -27400

```

Since population cannot be negative, we can assume that the projected population in 2025 would be 0 (if the trend continues).

User Kamala
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