Question

I want to know the 1st one

Answer 1

Step-by-step explanation:

THE EQUATION GIVEN IS A LINEAR EQUATION

P(x) = 2x+5

To find zero ..equate the linear equation to zero

2x+5=0

x = –5/2

for second part of this question

We can see clearly that the equation is also the equation of a line which can be represented as :–

y = 2x + 5

since we have to find where it cuts x axis

any point on x axis has coordinates (x,0)

putting these coordinates in the equation

2x + 5 = 0

x = -5/2

is the required answer

Answer 2

Answer:

Step-by-step explanation:

p(x) = 2x +5y

(The formula from polynomials cant be used here as the term is only one)

=== 2x + 5y = 0

=== 2x = -5

=== x = -5/2

=== x = -2.5

If we briefly remember we know that the solution of a linear equation is the coordinate at which it meets the x-axis.

And we also know that all points at the x-axis have a y coordinate of 0

Therefore we can say that ( -2.5, 0 ) will be the point of intersection at the y axis