Review Moving Straight Ahead part 2

Question 1

mx + b = y

Answer 1

The equation that all lines that have linear relationship can be written with.

Question 2

Y-intercept

Answer 2

The point where the line crosses the y-axis. (b)

Question 3

Coefficient

Answer 3

The number that multiplies a variable in an equation. (m)

Question 4

Distributive property

Answer 4

distributing the multiplication throughout a set of parenthesis. Ex: 2(x + 2) = 2x + 4

Question 5

Increasing Slope

Answer 5

The line is increasing if you have a positive unit rate.

Question 6

Decreasing Slope

Answer 6

The line is decreasing if you have a negative unit rate.

Question 7

Solving for x

Answer 7

Use opposite operations to move numbers to one side of the equation leaving x equal to a number. Gives you the missing value.

Question 8

Equivalent expressions

Answer 8

Equations that are equal to each other. 3 + 2 = 1 + 4

Question 9

Points of intersection

Answer 9

When two lines meet and the two equations are equal to each other. (When finding the points of intersection set the equations equal and solve for x).

Question 10

Slope

Answer 10

The measure of the steepness of the line. rise/run or y change/x change

Question 11

Vertical change

Answer 11

The change in the y, up and down. (rise)

Question 12

Horizontal change

Answer 12

The change in the x, forward and back. (run)