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To find the x intercept of an equation, simply plug in 0 for the y value, and solve for x (at the point where the line crosses the x axis, y will be equal to 0).
Ex/
2y + 3x = 21
3x = -2y + 21 (move y to opposite side)
3x = -2(0) + 21 (plug in 0 for y)
3x = 0 + 21 (multiply)
3x = 21 (add 0 and 21)
x = 7 (divide both sides by 3 to be left with only an x)
For this line, the point where the line intercepts the x axis is (7,0).
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How do you find x intercept?
to find the y-intercept you plug in your x and y values in to the equation of y=mx+b. b is the y intercept and m is the slope. To find the x-intercept, set y = 0, and find value of x that satisfies the equation. If it is a line in the form y=mx+b, then the x-intercept will be at x= -b/m
How do you find the equation for Y intercept?
On the y-axis, x=0. Take the equation you have, set x=0, solve what's left for 'y'. That's the y-intercept.
How would you find the equation of a line if you were given the slope and the y-intercept?
y = {slope}x + {y intercept}
How do you find the coordinates of y-intercept and x-intercept on a graph?
You can either measure or estimate the coordinates visually from the graph, or solve the equation underlying the graph.
How do you find the x and y-intercept of the line for the equation 2x 3y-18?
2x = 3y - 18At the x-intercept, y = 0 :2x = -18x = -9At the y-intercept, x = 0 :3y - 18 = 03y = 18y = 6
