Pre Algebra Review

Front

What is a function?

Back

A function is a relation where each input has exactly one output.

Tags

CCSS.8.F.A.1

Front

Is the graph of a vertical line a function?

Back

No, it is not a function because it fails the vertical line test.

Front

What does 'm' represent in the slope-intercept form of a line (y=mx+b)?

Back

'm' represents the slope of the line.

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Front

What is the slope of a line?

Back

The slope is a measure of the steepness of a line, calculated as the rise over run.

Tags

CCSS.8.EE.B.5

Front

How do you find the slope between two points (x1, y1) and (x2, y2)?

Back

The slope (m) is calculated using the formula m = (y2 - y1) / (x2 - x1).

Tags

CCSS.8.EE.B.5

Front

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

Back

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

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Front

If m=2 and b=3, what is the slope-intercept equation?

Back

The equation is y=2x+3.

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Front

What is the y-intercept of the line with the equation y=-3x+5?

Back

The y-intercept is 5.

Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

Front

What does it mean if a line has a positive slope?

Back

A positive slope means that as x increases, y also increases.

Tags

CCSS.8.EE.B.5

Front

What does it mean if a line has a negative slope?

Back

A negative slope means that as x increases, y decreases.

Tags

CCSS.8.EE.B.5