Find the equation of the straight line which passes through the point (-1,3) and make intercept on x - axis as thrice that on y - axis .​

Step-by-step explanation:

Given

Required

Determine the equation

First, we calculate the intercepts using:

Where

b = Intercept on y axis.

a = Intercept on x axis.

From the question:

The equation becomes:

Multiply through by 3b

We have:

So:

Make b the subject

Substitute in to get the equation

Make 3y the subject

Make y the subject

since the airplane is moving with constant speed then the distance travelled can be calculated by x=u*t

in km/h would be:

x=640*3.5=2.240 km

in m/s would be:

u=640 km/h= 640.000 m/h =640.000/ 3600 m/s =177.8 m/s

t= 3.5 h= 3.5 * 3600 s=12.600 s

then x=u*t= 177.8*12.600= 2.240.280 m

is it 35

step-by-step explanation: