Question

Find the points on x-axis which lie on the curve
16x² + 25y²= 400
​

Answer 1

Answer:

Step-by-step explanation:

let A and B be the intersection of the the curve 16x^2 + 25y^2 = 400 with the x-axis. then y = 0 and therefore

16x^2 = 400 and thus x^2 = 25 and consequently x = +-5. finally

A(- 5 , 0) and B(5 , 0).