All Common Core: 8th Grade Math Resources
Example Questions
Example Question #121 : Grade 8
Select the equation that shows the lowest unit rate.
Unit rate is the slope of an equation. The equations in our answer options are written in slope intercept form:
is always the slope, and is the -intercept.
We are looking for the equation with the lowest unit rate, or slope. Based on our options is the lowest value of ; thus our correct answer is
Example Question #122 : Grade 8
Select the equation that shows the lowest unit rate.
Unit rate is the slope of an equation. The equations in our answer options are written in slope intercept form:
is always the slope, and is the -intercept.
We are looking for the equation with the lowest unit rate, or slope. Based on our options is the lowest value of ; thus our correct answer is
Example Question #21 : Graph Proportional Relationships, Interpreting The Unit Rate As The Slope: Ccss.Math.Content.8.Ee.B.5
Select the equation that shows the greatest unit rate.
Unit rate is the slope of an equation. The equations in our answer options are written in slope intercept form:
is always the slope, and is the -intercept.
We are looking for the equation with the greatest unit rate, or slope. Based on our options, is the greatest value of ; thus, our correct answer is
Example Question #22 : Graph Proportional Relationships, Interpreting The Unit Rate As The Slope: Ccss.Math.Content.8.Ee.B.5
Select the graph with the greatest unit rate.
Graph A
Graph D
Graph B
Graph C
Graph B
The highest unit rate means that the slope is the highest. So, first we ned to solve for our slopes.
To solve for the slope we can use the following formula:
Based on our formula, we first need to find two points for each of the graphs, and then we can solve for the slope.
Graph A
Points: and
Slope:
Graph B
Points: and
Slope:
Graph C
Points: and
Slope:
Graph D
Points: and
Slope:
We are looking for the graph with the greatest slope, or unit rate; thus, our correct answer is Graph B.