8.5I y=mx+b recap

Front

What does the equation y = mx + b represent?

Back

It represents the slope-intercept form of a linear equation, where m is the slope and b is the y-intercept.

Front

In the equation y = mx + b, what does 'm' represent?

Back

The slope of the line, indicating the rate of change of y with respect to x.

Front

In the equation y = mx + b, what does 'b' represent?

Back

The y-intercept, which is the value of y when x is 0.

Front

Write the equation for the total cost of x pounds of fruit if the basket costs $3 and each pound costs $2.50.

Back

y = 2.50x + 3

Front

Write the equation for the water level of a river that starts at 34 feet and decreases at a rate of 0.5 foot per day.

Back

y = -0.5x + 34

Front

Write the equation for the total number of students if there were 11,000 students last year and it increases by 225 each year.

Back

y = 225x + 11000

Front

What is the slope of the equation y = 3x - 4?

Back

3

Front

What is the y-intercept of the equation y = -2/3x + 5?

Back

5

Front

If the slope of a line is negative, what does that indicate about the line's direction?

Back

The line decreases as it moves from left to right.

Front

How do you find the slope from two points (x1, y1) and (x2, y2)?

Back

Use the formula m = (y2 - y1) / (x2 - x1).