Algebra 1 Ch 1 & 2 Test

Front

Is the relation a function? Why?

Back

No, because the x-value 11 has two y-values pair with it.

Front

What is the definition of a function?

Back

Every input has only ONE output.

Front

What type of slope is represented by a vertical line?

Back

Undefined slope.

Front

What type of slope is represented by a horizontal line?

Back

Zero slope.

Front

What values would make the expression 10 / (10 + 10x) undefined?

Back

x = -1.

Front

Solve for x: 7x + 5 + x - 3 + x = 5

Back

x = 1/3.

Front

What is the slope of a line that decreases from left to right?

Back

Negative slope.

Front

What is the slope of a line that increases from left to right?

Back

Positive slope.

Front

What is the formula for slope?

Back

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

Front

What does it mean for a function to be linear?

Back

It can be represented by a straight line on a graph.