Question the-st
The sterplot shows the relationship between two variables, and . A line of best fit is also shown.
- The sterplot has 10 data points.
- The data points are in a linear pattern trending up from left to right.
- A line of best fit is shown.
- The line of best fit slants up from left to right.
- 1 point is touching the line of best fit.
- 5 points are above the line of best fit.
- 4 points are below the line of best fit.
- The line of best fit passes through the following approximate coordinates:
- (0 comma 3)
- (3 comma 8)
- (7 comma 15)
Which of the following equations best represents the line of best fit shown?
The sterplot shows the relationship between two variables, x and y . A line of best
Medium-difficulty · SAT Math · Two-Variable Data & Models — Line of best fit. Read the question above, select your answer, and check the full explanation below to understand exactly why the correct choice works.
Answer explanation
Choice A is correct. The line of best fit shown intersects the y-axis at a positive y-value and has a positive slope. The graph of an equation of the form , where and are constants, intersects the y-axis at a y-value of and has a slope of . Of the given choices, only choice A represents a line that intersects the y-axis at a positive y-value, , and has a positive slope, .
Choice B is incorrect. This equation represents a line that has a negative slope, not a positive slope.
Choice C is incorrect. This equation represents a line that intersects the y-axis at a negative y-value, not a positive y-value.
Choice D is incorrect. This equation represents a line that intersects the y-axis at a negative y-value, not a positive y-value, and has a negative slope, not a positive slope.
More Two-Variable Data & Models practice questions
- The sterplot above shows the federal-mandated minimum wage every 10 years between 1940 and
- The sterplot above shows the high temperature on a certain day and the elevation
- In which of the following tables is the relationship between the values of x
- The sterplot shows the relationship between two variables, x and y . A line
- The sterplot shows the relationship between two variables, x and y . The sterplot
- The sterplot shows the relationship between two variables, x and y . A line
- The sterplot above shows the numbers of grams of both total protein and total
- The sterplot above shows data for ten charities along with the line of best
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