Question

Passes through ( 4, 7 ) slope =2​

Answer 1

Answer:

y = 2x -1

Step-by-step explanation:

y = mx + b

y = 2x + b

7 = 2(4) + b

7 = 8 + b

-8  -8

-1 = b

Answer 2

Answer:

I'm assuming it's asking for the equation of the line

y = 2x - 1

Step-by-step explanation:

Step 1:  Use the formula y = mx + b to solve

This is slope-intercept form of a line.  We are given the slope of 2 in the question, and a point (x, y), which is (4, 7).  Plug those values into the equation above and solve for b (the only variable we are missing

7 = 2(4) + b

   7 = 8 + b  

   -1 = b

Step 2: Rewrite the formula using the slope and the b value we just calculated

 y = 2x - 1