Algebra 1 Midterm

Front

True or false: every function is a relation.

Back

True

Front

How high above the canyon floor is the top edge of the canyon if a ball is thrown from it and hits the floor?

Back

100 feet

Front

Solve the absolute value inequality: |8x + 11| > 13. What are the solutions?

Back

x < -3 or x > 1/4

Front

Find the recursive formula for the sequence −17, −9, −1, 7, 15, ... . What is the formula?

Back

a(n) = a(n-1) + 8, a(1) = -17

Front

Write a function rule for the graph of f(x) = |x| translated 2 units left and 7 units down. What is the function?

Back

f(x) = |x + 2| - 7

Front

What is a function?

Back

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

Front

What is the definition of absolute value?

Back

Absolute value is the distance of a number from zero on the number line, regardless of direction.

Front

What does it mean for a sequence to be recursive?

Back

A recursive sequence is defined using previous terms in the sequence.

Front

What is the general form of a linear function?

Back

The general form of a linear function is f(x) = mx + b, where m is the slope and b is the y-intercept.

Front

What is the slope-intercept form of a line?

Back

The slope-intercept form is y = mx + b, where m is the slope and b is the y-intercept.