Review 12-13-24

Front

What is the value of f(2) if f(x) = 4x?

Back

8

Front

Write the equation for the total cost c of hitting b buckets of golf balls if the cost is $4 to rent a golf club and $2.75 per bucket.

Back

c = 2.75b + 4

Front

Write the point-slope form of the line that passes through (4, -7) with a slope of -1/4.

Back

y + 7 = -1/4(x - 4)

Front

Calculate f(-4) if f(x) = 3x + 9.

Back

-3

Front

Write the equation for the total cost y of a holiday meal for x people if it costs $12.50 per person plus a $30 delivery fee.

Back

y = 12.5x + 30

Front

What is the definition of a linear equation?

Back

An equation that makes a straight line when graphed, typically in the form y = mx + b.

Front

What does the slope of a line represent?

Back

The rate of change of y with respect to x; it indicates how steep the line is.

Front

What is the y-intercept of a linear equation?

Back

The value of y when x = 0; it is the point where the line crosses the y-axis.

Front

How do you convert a point-slope equation to slope-intercept form?

Back

Isolate y to get it in the form y = mx + b.

Front

What is the formula for calculating the cost of multiple items with a fixed cost and a variable cost?

Back

Total Cost = Fixed Cost + (Variable Cost per item * Number of items).