hard to do this here since I can't graph it, but here is what you do graph the two points (-2,3) and (2,0) and then connect the points with a line to graph the line. Now look at where the line intersects the x axis. we could check it by finding the slope 3-0/-2-2=-3/4 now plug this in y=-3/4(x-2) or y=-3/4x+6/4 so y intercept is 3/2 and x intercept is 0=-3/4x+3/2 or -3/2=-3/4x so x=2 and the x intercept is 2 or the point (2,0) BUT THE POINT (2,0) told us this before we did any work, sine (2,0) is on the line and it is the point where y=0 and x=2.. THIS IS THE X intercept! Doctor Chuck
Because if there are two inequality eqations, you can find out which overlap if graphed.
By finding something who's behavior is represented by a linear function and graphing it.
Graph the equation then find the x intercepts.
use a graphing calculator. chances are, it's not linear; it's probably got some high-degree function with non-whole number coefficients. i think you can download a free graphing calculator online.
To find the x-intercept for 5x - 4y = 18, plug in a 0 for the y value and solve for x. 5x - 4(0) = 18 5x = 18 x = 18/5 or 3.6 The line will hit the x-axis at (3.6,0)
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-- Graph each equation individually. -- Examine the graph to find points where the individual graphs intersect. -- The points where the individual graphs intersect are the solutions of the system of equations.
Someone can find a free online graphing calculator at Meta-Calculator. On Meta-Calculator one can find graphing, scientific, matrix, statistics, and programmer's calculators.
graphing method is when you graph two lines and then find the intersection which is the answer of the system of equations
guess it
If you have an equation that looks like y=mx+b then the m is the slope. If you have two points then you use the formula Y2-Y1/X2-X1
webgraphing.com that should help
By substitution
Most graphing calculators are around $50. You can probably find one that is cheaper online, but generally they cost about $50.
There are a couple ways to determine the equation of a line without graphing. How to proceed depends on what you know about the line. Do you know a point, (x1, y1), and slope, m? Then use the point-slope formula, Do you know two points on the line, say (x1, y1) and (x2, y2)? Then use the two-point formula,
THE QUESTION IS ACTUALLY WORDED. FIND THE EQUATION OF THE LINE THAT CONTAINS THE POINTS P1(-7,-4) AND P2(2,-8). ALGEBRA
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