What is the y-intercept of the function f(x) = -4.2^x​

Step-by-step explanation:

The y-intercept always occurs when . To find the y-value of the y-intercept, substitute into your equation:

Given , when :

Therefore, the y-intercept of this function is .

pentagon

step-by-step explanation:

the coordinates   a(5, -2), b(3,-1),c(-4,-4) d(-3,8) and e(-1,4) forms the vertices of the polygon when they are connected in order.

in order to classify that which polygon is it with the given coordinates, first count the number of vertices and then count the number of sides it can make with these vertices.

since, the given coordinates have five vertices, therefore, it will make five sides. moreover, pentagon is regular in nature therefore it will be convex.

now, a polygon with five sides is known as pentagon, therefore, the given polygon is the pentagon.