Question

For some real number A, the graph of the line
y=(A+1)x+8 in the standard (x,y) coordinate plane passes through (2,6). What is the slope of this line?
A. -4
B. -3
C. -1
D. 3
E. 7

Answer 1

you are given the point (2,6) therefore you can plug in x = 2 and y = 6 to get

6 = (A+1)(2) + 8

solve for A. then, since the question asks for the slope, calculate A + 1 to get the solution

Answer 2

Ok. Thank you!