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To work out the equation of a straight line the slope and an (x, y) coordinate must be given
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Find the Y intercept and the x intercept for the equation -15x plus y equals 65?
15x + y =65divide by 65 b/s3x/13 + y/65=1ORx/4.33 + y/65=1HENCE X INTERCEPT=4.33 AND Y=65
How do you answer Ray bought 15 pencils for 7.75 Some cost 45 each the rest 65 each How many of each did Ray buy. Answer step by step please?
x= # of pencils that cost .45 y= # of pencils that cost .65 So now you need 2 equations for 2 variables: 15= x+y This equation is saying: 15 total pencils bought= pencils that cost .45 + pencils that cost .65 The second equation is: 7.75= .45x + .65y This equation is saying: total money spent (7.75)= price of pencils (.45) times # of pencils + price of pencils (.65) times # of pencils Then you combine these two equations, but first switch around the first equation to look like: y=15-x Then you replace the "y" in the second equation by putting in what y equals the first equation: 7.75= .45x + .65(15-x) Then distribute and solve for x: x = 10 Then enter 10 into the first equation for x to figure out y: y= 15- 10 y= 5 So your answer is-- Ray bought 10 pencils that cost .45 and 5 pencils that cost .65
What is the answer to algebra equation 5y-65xy?
-(60x) 5-65=-60 0x-1x=-1x 1y-1y=0y
How many miles does the i 65 travel through Kentucky?
About 175
What is the first step in solving the equation t mines 17 equals 48?
t - 17 = 48 The first step is to move the -17 to the right side of the equation and end up with: t = 48 + 17. (When you switch sides, the sign changes) To solve the equation: t = 65
What is the y-intercept for y equals 45x plus 65?
Given the equation y = 45x + 65, the y-intercept is 65. We know this because the equation is already in the form y = mx + b, where m is the slope, and b is the y-intercept.
What the slope intercept form of the points -65 and 814?
that is one point, you need at least two for a line.
How do you sketch the graph for x plus y equals 65?
subtract the x to the other side to get y=-x+65. its a straight line crossing the y-axis at 65 with a slope of -1.
What is the tangent equation line of the circle x2 plus 10x plus y2 -2y -39 equals 0 at the point of contact 3 2 on the Cartesian plane?
Equation of circle: x^2 +10x +y^2 -2y -39 = 0 Completing the squares: (x+5)^2 +(y-1)^2 = 65 Center of circle: (-5, 1) Slope of radius: 1/8 Slope of tangent line: -8 Point of contact: (3, 2) Equation of tangent line: y-2 = -8(x-3) => y = -8x+26 Note that the tangent line meets the radius of the circle at right angles.
What is an equation for them sum of 198 and 65?
Let 'S' represent the sum. Then the equation isS = 198 + 65
What is the equation of the tangent line that touches the circle x squared plus 10x plus y squared -2y -39 equals 0 at the point of 3 2 on the Cartesian plane showing work?
First find the slope of the circle's radius as follows:- Equation of circle: x^2 +10x +y^2 -2y -39 = 0 Completing the squares: (x+5)^2 + (y-1)^2 -25 -1 -39 = 0 So: (x+5)^2 +(y-1)^2 = 65 Centre of circle: (-5, 1) and point of contact (3, 2) Slope of radius: (1-2)/(-5-3) = 1/8 which is perpendicular to the tangent line Slope of tangent line: -8 Tangent equation: y-2 = -8(x-3) => y = -8x+26 Tangent equation in its general form: 8x+y-26 = 0
What is the tangent equation that touches the circle x squared plus 10x plus y squared -2y -39 equals 0 at the point of 3 2 on the Cartesian plane?
A line with slope m and a point (x0, y0) on it has equation: y - y0 = m(x - x0) The slope of the tangent is perpendicular to the slope of the radius to the point (3, 2) The product of the slope of a line and a line perpendicular to it is -1. A circle with centre (X, Y) and radius r has equation: (x - X)² + (y - Y)² = r² For x² + 10x + y² - 2y - 39 = 0 and the point (3, 2): x² + 10x + y² - 2y - 39 = 0 → x² + 10x + (10/2)² - (10/2)² + y² - 2y + (2/2)² - (2/2)² - 39 = 0 → (x + 5)² - 25 + (y - 1)² - 1 - 39 = 0 → (x - -5)² + (y - 1)² = 65 → the circle has centre (-5, 1) and radius √65. The slope m' of the radius to (3, 2) from the centre of (-5, 1) is given by: slope = change_in_y / change_in_x → m' = (2 - 1) / (3 - -5) = 1/8 → slope m of the tangent is: mm' = -1 → m = -1/m → m = -1/(1/8) = -8 Thus the tangent has equation: y - 2 = -8(x - 3) → y - 2 = -8x + 24 → y + 8x = 26
What is the equation for sum of 198 and 65?
The
What is an equation for the sum of 198 and 65?
198+65= ?
What is the answer to the equation 3 5 9 ----33 65?
It is not an equation and no solution is possible.
Solve the equation -5w=-65?
60
What times five equals 65?
Equation: 5x = 65 5x / 5 = 65 / 5 x = 13
