Question

1) If h(x)=x^2-5 find h(-3)

2) Given the function g(x)=x2+1, evaluate g(5x))

3) Joe drives 75 miles per hour. Pete drives 70 miles per hour. Write a function that defines how much further Joe will drive after t hours.

4) If f(x)=2x-15, find f(-5)

5) Given the function h(r)=2r-5, evaluate h(r+5)

6) If f(x)=3x and g(x)=2-6, find f(x)*g(x)

7) If f(x)=5x-4 and g(x)=2x+2, find g(x)-f(x)

8) If p(r)=10-15 and q(r)=5, find p(r)/q(r)

9) Find the area of the triangle with base equal to (2x-3) and height equal to (4x+5). Area of the triangle equals 1/2b*h.

Answer 1

in first put -3 in place of x and find the value

Answer 2

in 2nd do the same,put 5x in equation

Answer 3

3rd is arithmetic progression
in 1 hour he will be 5 miles further
so in t hours he will be 5t miles further

Answer 4

4th you have put value of -5 and solve

Answer 5

in 5th put r+5 instead of r and solve

Answer 6

whats 6th? can you rewrite g(x)

Answer 7

6) If f(x)=3x and g(x)=2-6, find f(x)*g(x)

Answer 8

okay
then you have to do it like this
3x(2-6) = 6x-18x=-12x

Answer 9

7th is simple subtraction
5x-4-(2x+2) = 3x-6

Answer 10

now p(r)/q(r)
same
put the values
10-15/5 = -5/5 = -1

Answer 11

now they have given you formula in 9th one
so area = 1/2 (2x-3)(4x+5) =1/2( 8x^2+10x-12x-15)
= 1/2( 8x^2-2x-15)
keep it like this as final answer

Answer 12

Thanks so much! If I have any more questions I'll shoot you another message, thanks again!

Answer 13

welcome :)