Algebra 1 Midterm Review

Front

What is the y-intercept in the function f(x)=13(0.27)^x?

Back

The y-intercept is 13.

Front

Convert 20 tons/year to ounces/day.

Back

1,753.42 ounces/day.

Front

Which ordered pair could you add to the following list of points to create a function? (3, 5), (4, 9), (2, 5)

Back

(1, 9) is the correct ordered pair.

Front

What is the division property of equality?

Back

If a=b, then a/c=b/c.

Front

Write an equation that models the following situation: Samantha's hair was known to grow very rapidly. It began at a length of 6 in and grew at a rate of 14% a week.

Back

y=6(1.14)^x.

Front

What is a function?

Back

A function is a relation that assigns exactly one output for each input.

Front

Define the slope of a line.

Back

The slope is the ratio of the rise (change in y) to the run (change in x).

Front

What is the standard form of a linear equation?

Back

The standard form is Ax + By = C, where A, B, and C are integers.

Front

What does it mean for two lines to be parallel?

Back

Two lines are parallel if they have the same slope and never intersect.

Front

What is the quadratic formula?

Back

The quadratic formula is x = (-b ± √(b² - 4ac)) / (2a).