Practice Math

Front

What is the y-intercept in the function y = 0.15x + 35,000?

Back

The y-intercept is 35,000, which represents Beth's base salary.

Front

If a home uses 0 kWh of electricity, what is the average cost?

Back

The average cost is $0.

Front

Write 45,000,000 in scientific notation.

Back

4.5 x 10^7

Front

Convert 5.6 x 10^-3 to standard form.

Back

0.0056

Front

If substance X has a mass of 6.10 × 10⁻⁷ grams, what is the mass of substance Y, which is twice as much?

Back

1.22 × 10⁻⁶ grams.

Front

What does the slope represent in the function y = 0.15x + 35,000?

Back

The slope (0.15) represents the commission rate Beth earns on her sales.

Front

How do you determine the total earnings from sales using the function y = 0.15x + 35,000?

Back

Substitute the total sales amount (x) into the function to find total earnings (y).

Front

What is scientific notation?

Back

A way to express numbers as a product of a coefficient and a power of 10.

Front

How do you convert a number from standard form to scientific notation?

Back

Move the decimal point to create a number between 1 and 10, and count the number of places moved to determine the exponent.

Front

What is the standard form of 4.5 x 10^3?

Back

4,500.