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MA.8.AR.3.5 · Linear Relationships, Data Analysis, and Functions

Interpreting Slope and y-Intercept in Context: Sample FAST Questions

In a real-world linear model such as h = 0.21m + 4.9, the slope is the rate of change per unit and the y-intercept is the starting value. 8th graders explain what each one means in the units of the situation.

How the FAST tests this benchmark

FAST items are mostly multiple choice and multiselect questions asking what the slope or the intercept means, often as a multi-part item that asks about both from the same equation. Answers have to carry units, so a bare 0.21 is wrong where 0.21 feet per month is right.

Skills students need

  • Interpret slope as a rate of change in context
  • Interpret the y-intercept as a starting value
  • Read slope and intercept from a table or graph in context
  • Attach the correct units to an interpretation

Try 6 real MA.8.AR.3.5 questions

These come straight from Algebro's 8th grade pre-algebra question bank, easiest first. Answer one, check it, then move to the next.

Question 1 of 6

Answer it and Algebro checks it instantly

Question 1EasyEquation Editor
A pool already holds 30 gallons of water, and a hose adds 12 gallons each minute. How many gallons are in the pool at the start (when the time is 0 minutes)?

Type the number.

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More 8th grade linear relationships and functions benchmarks

MA.8.DP.1.1

Building Scatter Plots and Line Graphs

MA.8.DP.1.2

Describing Patterns in Scatter Plots

MA.8.DP.1.3

Fitting a Line to a Scatter Plot

MA.8.AR.3.5: Slope and y-Intercept Practice | Algebro