InkLoop/NYS Standards/NY-8.SP.3NY-8.SP.3
8th GradeStatistics and Probability60 target questions
Use the equation of a linear model to solve problems in the context of bivariate measurement data interpreting the slope and intercept.
Sample Practice Questions (3)
1
The scatter plot below shows the relationship between the number of hours spent studying, , and the score on a math quiz, . A line of best fit is drawn with the equation . Based on this model, what is the predicted quiz score for a student who studies for hours?
A
B
C
D
Multiple choice · diagramSee Answer + Explanation →
2
The scatter plot and line of best fit shown below represent the relationship between the age of a car in years, , and its value in thousands of dollars, . The equation for the line of best fit is . What does the value represent in this context?
AThe car loses \$2,400 in value each year.
BThe car was worth \$26,000 when it was new.
CThe car will be worth \$0 in 2.4 years.
DThe car's value increases by \$2,400 each year.
Multiple choice · diagramSee Answer + Explanation →
3
Look at the coordinate axes below showing a line of best fit for a set of data. Which equation best represents the line shown?
A
B
C
D
Multiple choice · diagramSee Answer + Explanation →
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NY-8.NS.1Know that numbers that are not rational are called irrational. Understand informally that every number has a decimal expansion; for rational numbers show that the decimal expansion repeats eventually and convert a decimal expansion which repeats into a rational number.→NY-8.NS.2Use rational approximations of irrational numbers to compare the size of irrational numbers. Locate them approximately on a number line diagram and estimate the value of expressions.→NY-8.EE.1Know and apply the properties of integer exponents to generate equivalent numerical expressions. For example 3² × 3⁻⁵ = 3⁻³ = 1/27.→NY-8.EE.2Use square root and cube root symbols to represent solutions to equations of the form x² = p and x³ = p where p is a positive rational number. Evaluate square roots of small perfect squares and cube roots of small perfect cubes.→