Question
5. Graph a line with a slope of 2 and goes through the point (-1,3)
Answer
4.7
(282 Votes)
Meryl
Master · Tutor for 5 years
Answer
To graph a line with a given slope and through a specific point, we can use the point-slope form of the equation of a line. The point-slope form is given by:
where
is the slope and \((x_1, y_1)\) is the point the line passes through.Given the slope
and the point \((-1, 3)\), we can substitute these values into the point-slope form:
Now, let's simplify the equation:
To graph this line, we can follow these steps:1. Plot the given point \((-1, 3)\) on the graph.2. Use the slope to find another point. Since the slope is 2, it means that for every 1 unit we move to the right (positive x-direction), we move 2 units up (positive y-direction). Starting from the point \((-1, 3)\), if we move 1 unit to the right, we will be at \((-1 + 1, 3 + 2) = (0, 5)\). Plot this second point.3. Draw a line through the two points, extending it in both directions.The equation of the line in slope-intercept form (if needed) can be found by solving for
:
This is the equation of the line in slope-intercept form, where the y-intercept is \((0, 5)\).The accurate answer for the equation of the line in point-slope form is \(y - 3 = 2(x + 1)\), and in slope-intercept form, it is
.