Question

The graph of yax+b is a straight line which intersects x-axis at
a) (0,b/a
b) (0,b)
o) (b,0
d)
(-b/a,0)​

Answer 1

Answer:

Opt D ) ( -b/a , 0 )

Step-by-step explanation:

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Given :

An equation of a straight line y = ax + b

To Find:

The point of intersection of the line with the x axis.

Solution:

We have the line y = ax  + b.

We can find the x intercept in different ways.

    (1) Equation for x axis is y = 0

0 = ax + b

x = -b/a

The point is ( -b/a,0)

    (2) Another way is to write it in intercept form

y  =ax + b

y/b  +  -ax/b = 1

Here y intercept is b and x intercept is -b/a

The line y = ax + b intersects x axis at exactly one point namely (-b/a,0)

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