# Graphing calculator to find the equation of a line

The salary of a person was \$45,000 in 2009 and \$48,000 in 2011. Find a linear equation to determine the salary Y of the person in year X. Write your equation in (a) as a slope-intercept form. Drawing Equations on the Number Line [05/09/2002] How can I draw an equation like 2 - (-5) = 7 on a number line? Finding the Equation of a Line [01/08/1997] Given either a point and a slope or two points, how do you find the equation of a line in both point-slope and standard form? Finding the Equation of a Line [2/2/1996] Find the value of k ... Use a graphing calculator or online application to find the solutions to x 2 - 9 = 6√3 / x to the nearest tenth. The solution is approximately _____. x = -1.7 and 3.5 Find the Equation of a Line Given That You Know Two Points it Passes Through The equation of a line is typically written as y=mx+b where m is the slope and b is the y-intercept. If you know two points that a line passes through, this page will show you how to find the equation of the line. Use Linear Regression Calculator and Grapher Given a set of experimental points, this calculator calculates the coefficients a and b and hence the equation of the line y = a x + b and the Pearson correlation coefficient r. It also plots the experimental points and the equation y = a x + b where a and b are given by the formulas above. Mar 01, 2010 · On a graph, this is determined my locating where the line crosses the y-axis.<br />Graph from purplemath.com<br /> 10. Remember: Y=mx+b<br />In order to find the y-intercept without a graph, you need this equation and a coordinate point from the graph. When it comes to graphing linear equations, there are a few simple ways to do it. The simplest way is to find the intercept values for both the x-axis and the y-axis. Then just draw a line that passes through both of these points. That line is the solution of the equation and its visual representation. Given algebraic, tabular, and graphical representations of linear functions, the student will determine the slope of the relationship from each of the representations. From monomial calculator to scientific, we have all the pieces covered. Come to Algebra-equation.com and uncover factoring polynomials, simplifying and loads of additional math subjects Mar 01, 2010 · On a graph, this is determined my locating where the line crosses the y-axis.<br />Graph from purplemath.com<br /> 10. Remember: Y=mx+b<br />In order to find the y-intercept without a graph, you need this equation and a coordinate point from the graph. Find the slope of the line using the graph. 3 b. Determine the equation of the line that has slope 0 and goes through the point (–2, –3). 4 a. Find the Equation of a Line Given That You Know Two Points it Passes Through The equation of a line is typically written as y=mx+b where m is the slope and b is the y-intercept. If you know two points that a line passes through, this page will show you how to find the equation of the line. Think about the graph of the vertical line through (6, -2). The x-coordinate of every point on the graph is 6. Furthermore if a point in the plane is not on the graph then its x-coordinate is not 6. Hence a point (x,y) in the plane is on the graph if and only is x = 6. Thus the equation of the vertical line through (6, -2) is. x = 6. Penny Mar 01, 2010 · On a graph, this is determined my locating where the line crosses the y-axis.<br />Graph from purplemath.com<br /> 10. Remember: Y=mx+b<br />In order to find the y-intercept without a graph, you need this equation and a coordinate point from the graph. Aug 18, 2015 · I have a data A,B and I want to calculate the slope between two existing points I want to find the slop between 2012 & 2013 points I try: A=[ 234228; 249150 ; 265021 ;281904 ;299862 ]; Perpendicular Line Formula. Linear lines are almost always displayed in the form of . y = mx + b . Where m is the slope and b is the y intercept. The first step in finding the equation of a line perpendicular to another is understanding the relationship of their slopes. slope, slope-intercept form, y-intercept, linear equations. 4. Background knowledge: Students are presumed to know: how to plot points. how to find x and y intercepts. how to find slope by counting blocks from one point to another on the line . how to graph and use a table on a graphing calculator. 5. NCTM Standard(s) Addressed: Jul 12, 2016 · The graph has been moved upwards 3 units relative to that of y = sinx (the normal line has equation y = 3). We can also conclude that this is a sine function, because the graph meets the y axis at the normal line, and not at a maximum/minimum. As for the amplitude, we find the maximum is at y = 5 while the normal line is y = 3. Suppose the equation of the line tangent to the graph of g at the point (4, 1) is y = 2x - 7 and the equation of the line tangent to the graph of f at (1, 5) is y = 4x+ 1. a. Calculate h(4) and h ... Notice that the line with the greater slope is the steeper of the two. The greater the slope, the steeper the line. Keep in mind, you can only make this comparison between lines on a graph if: (1) both lines are drawn on the same set of axes, or (2) lines are drawn on different graphs (i.e., using different sets of axes) where both graphs have the same scale. Notice that the line with the greater slope is the steeper of the two. The greater the slope, the steeper the line. Keep in mind, you can only make this comparison between lines on a graph if: (1) both lines are drawn on the same set of axes, or (2) lines are drawn on different graphs (i.e., using different sets of axes) where both graphs have the same scale. Use Linear Regression Calculator and Grapher Given a set of experimental points, this calculator calculates the coefficients a and b and hence the equation of the line y = a x + b and the Pearson correlation coefficient r. It also plots the experimental points and the equation y = a x + b where a and b are given by the formulas above. linear regression line: LinReg y=ax+b a=-.2928571429 b=75.60714286 Keep in mind that a is the slope (what we have called m) and b is the vertical-intercept, which thankfully, we have also called b. So, writing this line in the form y=b + mx, we get that the equation of the regression line is v=75.607-0.293T. Which, if we look at the Using theTI-84 Plus Silver Edition Graphing Calculator Instructional Videos University of Houston Department of Mathematics. Instructions: 1. Use the table below to find the title of the video that you wish to view.