What is the slope of the line that is perpendicular to the line whose equation is 2x + y = 4.

Step-by-step explanation:

Given equation is 2x+y=4 .so slope(m1) = - coefficient of x / coefficient of y= -2/1=-2

-0.5

Step-by-step explanation:

Given that the slope is 2, the opposite of that is -0.5. Take the fractions and flip them. 2 is 2/1. If you reverse 2/1, you get -1/2.

-13

step-by-step explanation:

f(x)=2x-5 for f(-4)

f(-4)   means let x=-4

f(-4) = 2(-4) -5

f(-4) =-8-5

      = -13

15

step-by-step explanation:

we are given the following expression and we are to solve it and find the product:

-13 × (-5)

solving the given expression in the standard order of solving a mathematical expression, beginning with the opening of brackets and then multiplying the terms and changing their signs.

-3 × -5 = 15 (answer is positive because when negative is multiplied with negative, it gives a positive answer)