Question

Write a rule for the linear function with the following description: the graph has slope 2 and contains the point (-1, 1):
A. y = 2x - 1
B. y = 2x + 3
C. y = x + 1
D. y = -x + 2

Answer 1

y = mx + b
m is your slope...so m = 2
(-1,1)...x = -1 and y = 1
now we sub and solve for the y int (b)
1 = 2(-1) + b
1 = -2 + b
1 + 2 = b
3 = b

so your equation is : y = 2x + 3
questions ?

Answer 2

Thank you

Answer 3

sure thing :)