Posted by Jas on Monday, July 12, 2010 at 12:04pm.
Hi, I have to produce a sketch of a line that passes through the points (4,3) and (10,0), i have already worked its gradient out to be 0.5 and its y  intercepts as 5. For some reason i am having a mental block on the next bit! I need to add the line y = 6 to the sketch and then use algebra to find the coordinates of the point where the two lines intersect.
Please help

Maths  Henry, Thursday, July 15, 2010 at 8:44pm
GIVEN: ( 4, 3 ), ( 10, 0 ).
m = 3/6 = 1/2 = 0.5
Find Equation of line:
Y = mX + b
3 = 1/2(4) + b.
Solve for b: b = 5.
Y = 1/2X +5
Substitute 6 for Y and solve for X.
6 = 1/2X + 5
1/2X = 1, X = 2. P ( 2, 6 ) is
where the lines intersect. Y = 6 is
a horizontal line 6 units above x
axis. Graph both lines and compare
point of intersection ( solution )
with calculated value.
Answer This Question
Related Questions
 Mathamatics  This question concerns the straight line that passes through the ...
 Math  This question concerns the straight line that passes through the points...
 Math please.  What is the yintercept of y = 2/3x + 2? I have to write it out ...
 math  Q2.Plot three points with second coordinate equal yo (1.3) and join them...
 Maths  Hi, need a bit of help on this one. A straight line passes through the ...
 Math  What is the yintercept of y = 2/3x + 2? I have to write it out but how? ...
 Maths  Please help, I need to calculate the gradient of a straight line that ...
 maths  the line passes through the points s(6,6) and T(0,2) determine the ...
 maths  Find the gradient of the straight line that passes through the points (3...
 math  On a straight line graph, if the line is going this way \ and the co ...
More Related Questions