Question

Find all real zeros of the function y=-5x-7

Answer 1

x=1 2/5

Explanation:

Replace y with 0 and solve for x.

Answer 2

Answer: The required zero of the given function is x = -1.4.

Step-by-step explanation: We are given to find all the real zeroes of the following function :

`y=-5x-7~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~(i)`

Since the given function is linear, so it will have only one real zero.

Also, the zeroes of a function y = f(x) is given by f(x) = 0.

So, the zero of the given function (i) is

`y=0\\\\\Rightarrow -5x-7=0\\\\\Rightarrow 5x=-7\\\\\Rightarrow x=-(7)/(5)\\\\\Rightarrow x=-1.4.`

Thus, the required zero of the given function is x = -1.4.