To find the y intercept using the equation of the line, plug in 0 for the x variable and solve for y. If the equation is written in the slope-intercept form, plug in the slope and the x and y coordinates for a point on the line to solve for y. How do you find the Y intercept with two points and slope?
Example 1: Graph the equation of the line 2x - 4y = 8 using its intercepts. I hope you recognize that this is an equation of a line in Standard Form where both the x and y variables are found on one side of the equation opposite the constant term. It is a common practice in an algebra class to ask students to graph the line using the intercept method when the line is in Standard Form.
Write an equation in slope-intercept form for the line with slope 6 and y-intercent -9. Then graph the line. Equation: DO x ?
Sep 03, 2006 · The question "Is Y proportional to X?" has traditionally been answered graphically - if Y is proportional to X, then the equation relating Y and X is Y = mX + b for some constants m and b, and the graph of Y versus X will be a straight line with slope m and y-intercept b.
To solve this, first find the equation of our line. The form of the question gives it to us very directly. We can use the slope-intercept form (y = mx + b). y = 5x + 3.5. The x-intercept is found by setting y = 0, because that will give us the x-value at which the line crosses the x-axis. 0 = 5x + 3.5; –3.5 = 5x; x = –3.5 / 5 or –0.7.
The slope and y-intercept calculator takes a linear equation and allows you to calculate the slope and y-intercept for the equation. The equation can be in any form as long as its linear and and you can find the slope and y-intercept. Step 2: Click the blue arrow to submit and see the result!
y = mx + b Write the slope-intercept form. y = 0x + (−2) Substitute 0 for m and −2 for b. y = −2 Simplify. An equation is y = −2. Using Graphs to Write Equations Write an equation of each line in slope-intercept form. a. x y 2 −2 2 4 (0, −3) (4, 3) b. x y 4 −2 2 4 (4, −1) (0, 2) SOLUTION a. Find the slope and y-intercept. Let (x ...
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b is the y-intercept of the line x is the independent variable of the function y = f(x) The slope of the line through points (x1, y1) and (x2, y2) is given by m = (y2 – y1)/ (x2 – x1), and the equation of this line can be written