Chapter 10 – Straight Lines
Example 13 Equation of a line is 3x – 4y + 10 = 0. Find its (i) slope, (ii) x – and y-intercepts.
27
Oct
Example 13 Equation of a line is 3x – 4y + 10 = 0. Find its (i) slope, (ii) x – and y-intercepts. (ii) x - and y-intercepts. Example 13 Equation of a line is 3x – 4y + 10 = 0. Find its (i) slope October 27, 2021 Category: Chapter 10 - Straight Lines [...]
Example 12 The Fahrenheit temperature F and absolute temperature K satisfy a linear equation. Given that K = 273 when F = 32 and that K = 373 when F = 212. Express K in terms of F and find the value of F, when K = 0.
27
Oct
Example 12 The Fahrenheit temperature F and absolute temperature K satisfy a linear equation. Given that K = 273 when F = 32 and that K = 373 when F = 212. Express K in terms of F and find the value of F, when K = 0. 3) with slope – 4. Example 7 [...]
Example 11 Find the equation of the line whose perpendicular distance from the origin is 4 units and the angle which the normal makes with positive direction of x-axis is 15°.
27
Oct
Example 11 Find the equation of the line whose perpendicular distance from the origin is 4 units and the angle which the normal makes with positive direction of x-axis is 15°. Example 11 Find the equation of the line whose perpendicular distance from the origin is 4 units and the angle which the normal makes [...]
Example 9 Write the equation of the lines for which tan θ = 2/1, where θ is the inclination of the line and (i) y-intercept is -3/2 (ii) x-intercept is 4.
27
Oct
Example 9 Write the equation of the lines for which tan θ = 2/1, where θ is the inclination of the line and (i) y-intercept is -3/2 (ii) x-intercept is 4. Example 9 Write the equation of the lines for which tan θ = 2/1 where θ is the inclination of the line and (i) [...]
Example 8 Write the equation of the line through the points (1, –1) and (3, 5).
27
Oct
Example 8 Write the equation of the line through the points (1, –1) and (3, 5). 1) and ( 3 5 Example 8 Write the equation of the line through the points (1 October 27, 2021 Category: Chapter 10 - Straight Lines , Maths , NCERT Exemplar Class 11 ,
Example 7 Find the equation of the line through (– 2, 3) with slope – 4.
27
Oct
Example 7 Find the equation of the line through (– 2, 3) with slope – 4. 3) with slope – 4. Example 7 Find the equation of the line through (– 2 October 27, 2021 Category: Chapter 10 - Straight Lines , Maths , NCERT Exemplar Class 11 ,
Example 6 Find the equations of the lines parallel to axes and passing through (– 2, 3).
27
Oct
Example 6 Find the equations of the lines parallel to axes and passing through (– 2, 3). 3% Example 6 Find the equations of the lines parallel to axes and passing through (– 2 October 27, 2021 Category: Chapter 10 - Straight Lines , Maths , NCERT Exemplar Class 11 ,
Example 5 In Fig 10.9, time and distance graph of a linear motion is given. Two positions of time and distance are recorded as, when T = 0, D = 2 and when T = 3, D = 8. Using the concept of slope, find law of motion, i.e., how distance depends upon time.
27
Oct
Example 5 In Fig 10.9, time and distance graph of a linear motion is given. Two positions of time and distance are recorded as, when T = 0, D = 2 and when T = 3, D = 8. Using the concept of slope, find law of motion, i.e., how distance depends upon time. D [...]
Example 4 Three points P (h, k), Q (x1 , y1 ) and R (x2 , y2 ) lie on a line. Show that (h – x1 ) (y2 – y1 ) = (k – y1 ) (x2 – x1 ).
27
Oct
Example 4 Three points P (h, k), Q (x1 , y1 ) and R (x2 , y2 ) lie on a line. Show that (h – x1 ) (y2 – y1 ) = (k – y1 ) (x2 – x1 ). Example 4 Three points P (h K Q (x1 y1 ) and R (x2 [...]
Example 3 Line through the points (–2, 6) and (4, 8) is perpendicular to the line through the points (8, 12) and (x, 24). Find the value of x.
27
Oct
Example 3 Line through the points (–2, 6) and (4, 8) is perpendicular to the line through the points (8, 12) and (x, 24). Find the value of x. 12) and (x 24). Find the value of x. 6) and (4 8) is perpendicular to the line through the points (8 Example 3 Line through [...]