F(x) = 5x
for f(7) you replace x with 7 so it will be : f(7) = 5(7) = 35
A is the answer because its the only one that is in its exact formation of the question
Step-by-step explanation:
We can calculate the value of y by using the Euclidean theorem
y^2 = 20 × 4
y^2 = 80
y = 4√5
It’s the absolute value of 0 and 5 because it’s the same absolute value the absolute vale is 5 for both 5 and -5 because absolute value of a number is the distance from 0 you can’t have a negative value
