Verified answer

for every x, substitute the number in the parenthesis:

f(x) = x^2 – 7x + 10

a.

f(0) = 0^2 - 7(0) + 10

f(0) = 0 - 0 + 10

f(0) = 10

b.

f(5) = 5^2 - 7(5) + 10

f(5) = 25 - 35 + 10

f(5) = 0

c.

f(-2) = (-2)^2 - 7(-2) + 10

f(-2) = 4 + 14 + 10

f(-2) = 28

Okay, not sure what you mean by an intro to fractions. If you typed it right, this is just what I call a plug and chug problem. For all a, b, and c, you simply put the number thats in the parenthesis everywhere you see x in the equation. Therefore just use your calculator. If you don't have one, heres the answers:

a)f(0) = 0(2 )– 7(0) + 10=10

b)f(5) = (5)2 – 7(5) + 10= -15

c) f(-2) = (-2)2 – 7(-2) + 10=20

f(0) = 0^2 - 0 + 10 = 10

f(5) = 5^2 - 35 + 10 = 0

f(-2) = 4 + 14 + 10 = 28.

I cannot see what this has to do with fractions.

Some people have taken x2 to mean 2x, and others have taken it to mean x^2 (x squared). That's why you are getting inconsistent answers.

if that is an x squared term

all that you do..

for (A) substitute 0 for every x you see, so 0^2 - 7(0) + 10 = 10

(B) 5^2 - 7(5) +10

= 25 - 35 + 10

=0

(C) (-2)^2 - 7(-2) + 10

= 4 + 14+ 10 = 28

it is f(10) so x might desire to correspond to 10 interior the ordered pairs (ie the 1st one) f(10) = 10² - 7*10 + 9 (replace x with 10) f(10) = one hundred - 70 + 9 = 39 so the ordered pair is: (10,39)

a) 10

b) -15

c) 20

a) -10

b) -15

c) 34