The straight line l 1 passes through the point (4, 14) and has gradient 1/4 a.
Question:
The straight line l1 passes through the point (−4, 14) and has gradient − 1/4
a. Find an equation for l1 in the form ax + by + c = 0, where a, b and c are integers.
b. Write down the coordinates of A, the point where straight line l1 crosses the y-axis. The straight line l2 passes through the origin and has gradient 3. The lines l1 and l2 intersect at the point B.
c. Calculate the coordinates of B.
d. Calculate the exact area of △OAB.
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Step by Step Answer:
a To find the equation of line l1 in the form ax by c 0 we can use the pointslope form of a linear e...View the full answer
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Related Book For 
Edexcel AS And A Level Mathematics Pure Mathematics Year 1/AS
ISBN: 9781292183398
1st Edition
Authors: Greg Attwood
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