Respuesta :
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:
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
