Davit uses the equation y=80x+25 to determine a weekly food budget, y, for a household of x people. How much would he expect a family of 3 people to spend on food each week?
What type of association is shown by the data in the scatter plot?
Which equation best models the data shown in the scatter plot?
y=\frac{1}{2}x+1
y=2x+1
y=2x-1
y=\frac{1}{2}x-1
Choose the type of correlation obtains between x and y values in the following data table.
positive correlation
negative correlation
no correlation
Using the data from question 3, which trend line best fits the data?
The following table shows a student's i-Ready Math test scores for each of their annual diagnostic test sessions throughout middle school. Select all and any statements that are true about the scenario.
The slope is the student's average score for all 4 sessions.
The slope is how often the school has i-Ready test sessions.
The y-intercept represents the student's math ability in 5th grade.
The y-intercept represents the student's improvement each year.