Question

Evaluate y = 2x + 1 when x= -1

Answer 1

y = -1

Explanation:

We Know:

y = 2x + 1, and x= -1.

Substitute:

y = 2(-1) + 1

Multiply:

2 * -1 = -2

y = -2 + 1

Add:

-2 + 1 = -1

So,

y = -1.

Answer 2

y = 2x + 1
y = 2(-1) + 1
y= -2 + 1
y= -1