A function is defined by f(x)=5(2-x). What is f(-1)

15

Step-by-step explanation:

f(x) = 5(2-x)

if f(-1)

f(-1) = 5(2-(-1))

= 5(2+1)

= 10 + 5

= 15

2

step-by-step explanation:

g = (2, 2)

step-by-step explanation:

given the ratio is 1 : 1 then f is the midpoint of eg

let the coordinates of g = (x, y)

using the midpoint formula

(0 + x) = 1 ( multiply both sides by 2 )

0 + x = 2 ⇒ x = 2

similarly

(4 + y) = 3 ( multiply both sides by 2 )

4 + y = 6 ( subtract 4 from both sides )

y = 2

coordinates of g = (2, 2)