Write the equation of the line that passes through the points (3, 6) and (4, 10) using function notation.

f(x) = 4x − 6
f(x) = x + 4
y = x + 4
y = 4x − 6

5 answers

Pls help me
Its

Y= 4x -6
I calculated this on Wolfram Alpha :)

Its an awesome math site
except, using function notation, it is

f(x) = 4x-6
f(3) = 6
f(4) = 10

[f(4)-f(3) ] / (4-3) = [f(x) -f(4]/(x-4)

[ 10 - 6 ]/(1) = [f(x) - 10] /(x-4)

4 = (f(x)-10)/(x-4)

4 x - 16 = f(x) - 10

f(x) = 4 x - 6