Topic 3 Flashcard

Front

What is the equation that represents the charge of a plumber who charges $70 per hour plus a $40 call fee?

Back

c = 70h + 40

Front

What is the domain of the function represented by the set of values (0, 1, 2, 3)?

Back

The domain is (0, 1, 2, 3).

Front

If f(x)=10x-1, what is f(2)?

Back

f(2) = 19

Front

What is the domain of the set {5, 10, 15}?

Back

The domain is {5, 10, 15}.

Front

Which equation could represent a possible line of best fit for a dataset?

Back

y = -1.5x + 20

Front

Define the term 'domain' in mathematics.

Back

The domain is the set of all possible input values (x-values) for a function.

Front

What does the slope of a line represent in a linear equation?

Back

The slope represents the rate of change of the dependent variable with respect to the independent variable.

Front

What is the formula for calculating the slope (m) between two points (x1, y1) and (x2, y2)?

Back

m = (y2 - y1) / (x2 - x1)

Front

What is the y-intercept in the equation of a line y = mx + b?

Back

The y-intercept is the value of y when x = 0, represented by b.

Front

How do you find the value of a function at a specific point?

Back

Substitute the specific point into the function's equation.