Chapter 4 Review

Front

Simplify the expression: 2x + 4y + 6

Back

2x + 4y + 6

Front

Write an equation of the line with slope 3/4 and y-intercept 9

Back

y = 3/4 x + 9

Front

Write the equation of a line in slope-intercept form passing through (9, 4) and (4, -11)

Back

y = 3x - 23

Front

Is the relation a function? Yes or No: Each input has exactly one output.

Back

Yes, each input has exactly one output.

Front

Write a linear function f with the values: f(3) = 9 and f(-4) = 2

Back

f(x) = x + 6

Front

What is the slope-intercept form of a line?

Back

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

Front

Define a function in mathematical terms.

Back

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

Front

What does it mean for a line to be in slope-intercept form?

Back

It means the equation is written as y = mx + b.

Front

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

Back

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

Front

What is the y-intercept of a line?

Back

The y-intercept is the point where the line crosses the y-axis (x=0).