Here is a formula:
a=2b-c
what is the value of a if b=12 and c=-4​

a=28

Step-by-step explanation:

a = 2b - c

a = 2(12) - (-4)

a = 24 + 4

a = 28

by the formula

a=2b-c

if b =12

so, a= 2*12-(-4)

a= 24+4

a=28

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720

step-by-step explanation:

first i did work 2nd i did work and 3rd i did work

options a,b,c are the right answer.

step-by-step explanation:

a linear parent function is always represented as y = x

if we write this function in the form of y=mx+c

⇒

or  

now if we plot a graph we will find these characteristics:

1) y intercept of the graph is zero so its a straight line passing through origin.

2) as we can see in both the forms of function written, values of x and y may be either positive or negative for the positive slope means points on the graph are either in first quadrant or in third one.

3) it's slope is one.