Being timmed please help me
1 answer:
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Answer:
Option C is correct.
The equation of line is , f(x)=2x+5
Step-by-step explanation:
Point slope intercept form: For any two points and
then,
the general form of the equation of line is given by;
; where m is the slope given by:
Consider the given points;
(1, 7) and (5 , 15)
First calculate the slope (m);
Therefore, slope of the line, m=2
Then, the equation of line is:
Substitute the value of m=2 and (1, 7) above we get;
or
Add 7 to both sides of an equation we get;
Simplify:
using function notation i.e, y =f(x)
then, we have f(x) = 2x+5
therefore, the equation of line that passes through the point (1, 7) and (5, 15) is ; f(x)=2x+5