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Write the equation in slope intercept form of the line that has a slope of -3 and contains the point 1 1 and how does one work out the proble in simple steps?
Wiki User
∙ 14y ago
Slope intercept form would be: y = mx + b So, you already know m=-3 so you have to figure out b. So we will substitute (1,1) for (x,y) and solve for b. 1 = (-3) (1) + b 1 = -3 + b 4 = b So, now you can write: y=-3x +4
Wiki User
∙ 14y ago
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What defines a line as straight on a graph?
Two points. An intercept and an angle. Answer: When the equation of the line has x as a simple multiple of y, the line is straight (e.g x=m+by)
How do you graph the equation y equals x-1?
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What is a simple equation for the trajectory of catapults?
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The gradient of a linear equation is also known as slope. Slope is the (Change in Y)/(Change in X). Luckily there is a simple way to find out the slope in a simple linear equation. A simple linear equation can be written as: y = mx + b where m = slope (gradient) and b = y-intercept I assume your equation is x = 2y + 1. This may look like it fits the equation above but it does not. The equation needs to be solved for y. x = 2y + 1 (Subtract 1 from both sides) x - 1 = 2y (Divide both sides by 2) x/2 - 1/2 = y Now the equation is in the proper form. y = 1/2x - 1/2 Looking at the first equation: m = slope = 1/2. The slope (or gradient) is 1/2
What is the formula in linear equations?
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How do you find the equation of a line?
The equation of line can be easily made if the slope and y-intercept are known, in the form of y equals mx plus b, where m is the slope and b is the y-intercept. The quadratic equation may need to be utilized if the previous equation cannot be used.
What is the x-intercept for this linear equation 5 x - 4 y equals 18?
There is one simple way to find the answer to this. The x-intercept occurs when y = 0 as this is the equation of the x-axis. Along the x-axis, the value of the y is always zero. There fore you can take the value y = 0, substitute into the equation and then solve for x. e.g. 5x - 4 x 0 = 18 5x = 18 x = 3.6 Hence the x-intercept is when y = 0 and x = 3.6 This method also translates to how to find the y-intercept. The only difference is that you substitute x = 0 into the equation.
What defines a line as straight on a graph?
Two points. An intercept and an angle. Answer: When the equation of the line has x as a simple multiple of y, the line is straight (e.g x=m+by)
What is the y-intercept of the line passing through the point with a slope of?
the equation for a line is y=mx+b where x and y are any point on a line, m is the slope, and b is the y-intercept. this equation is usually seen with numbers plugged into m and b, and y and x are left as is. if you want to find the y-intercept of a equation and you have a point and a slope, than you wouldn't want to use this equation. you would want to use a similar one. so lets make it with some simple algebra. y=mx+b subtract mx from both sides y-mx=mx-mx+b simplify y-mx=b now you have a simple formula. take the slope of the line, multiply it by the y value, and subtract that from the x value, and you will get the y-intercept.
How do you graph the equation y equals x-1?
y=x-1 is a simple linear line variation of y=x. With the inclusion of a constant 1, the y intercept (when x is 0) is shifted from 0 to -1. The slope is 1, and the y intercept is -1.
Is it possible to have a rationol function whose equation contains no y-intercept?
Yes as for example x = 5 which is a straight vertical line parallel to the y axis
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There are at least two algebraic ways. The simple way is to put x = 0 and solve: Thus: -6*0 -9y = -3 that is -9y = -3 or 9y = 3 so that y = 1/3 Rewrite the equation in slope-intercept form (y = mx + c). Thus: -9y = 6x - 3 So that y = -2/3*x + 1/3 and so c = intercept 1/3 The non-algebraic way is to draw the graph and read off the value of the intercept.
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What is the gradient of x 2y1?
The gradient of a linear equation is also known as slope. Slope is the (Change in Y)/(Change in X). Luckily there is a simple way to find out the slope in a simple linear equation. A simple linear equation can be written as: y = mx + b where m = slope (gradient) and b = y-intercept I assume your equation is x = 2y + 1. This may look like it fits the equation above but it does not. The equation needs to be solved for y. x = 2y + 1 (Subtract 1 from both sides) x - 1 = 2y (Divide both sides by 2) x/2 - 1/2 = y Now the equation is in the proper form. y = 1/2x - 1/2 Looking at the first equation: m = slope = 1/2. The slope (or gradient) is 1/2
What is a simple equation for the trajectory of catapults?
you find the hard equation and simplify it....
What is the formula in linear equations?
There are two eqivalent versions: y = mx + c This is called the slope-intercept form. When the graph of the equation is plotted, the line has a slope = m and y-intercept = c. ax + by + k = 0 This is the standard form and can be generalised to three (or more) dimensions by the simple addition of the term cz (and dw etc) to the left hand side.
