If 4 is a solution to x^2+bx-12=0, then b=?

b = -1

Step-by-step explanation:

First plug in 4 for each x:

Then simplify by multiplying out what you can with 4:

After simplify further by combining like terms:

Then isolate b on one side by subtracting 4 from each side:

Finally isolate b further by dividing each side by 4 to get b alone and find the

answer

d. 10

explanation

the distance from point y to wx is the height of the triangle.

using pythagoras theorem,

group similar terms to get,

this implies that,

take positive square root of both sides to get,

this implies that,

answer: 4 (:

step-by-step explanation: