SAT Linear and Non-Linear

• $y=2x+5$

• $y=-2x+5$

• $y=-2x-4$

• $y=2x-4$

• A farmer can predict his crop precisely by measuring rainfall

• There is a positive linear correlation between rainfall and cucumber yield

• The y-intercept shows the expected cucumber yield if there is no rain

• The line of best fit is meaningless outside the first quadrant

• The slope changes to a negative value from 1995 to 1996

• The slope is zero from 1990 to 1991

• The slope increases over time

• The slope is constant over time

• The scatterplot shows strong linear growth of sales after a flat start

• The scatterplot shows weak linear growth for the first 6 months

• The scatterplot shows exponential growth for the first 6 months

• The scatterplot shows quadratic growth for the first 6 months

• Linear behavior, negative slope

• Exponential behavior, growth

• Exponential behavior, decline

• Quadratic behavior, decline

Scientists use carbon-14 dating when they estimate the time period to which ancient artifacts belong. The graph models radioactive decay comparing percentage of original mass to time, measured in thousands of years. Which type of function is shown on the graph?

• Linear Increasing

• Linear Decreasing

• Exponential Increasing

• Exponential Decreasing

• A linear function with a negative rate of change

• A linear function with a positive rate of change

• An exponential decay function

• An exponential growth function

• $f\left(x\right)=3^x-4$

• $f\left(x\right)=2^x+1$

• $f\left(x\right)=10x-5$

• $f\left(x\right)=4x+1$