Why is slope-intercept most useful and why?

Useful because it the most used because it’s a straight line

Step-by-step explanation:

Y=Mx+b is one of the first formulas you learn and can be written from a graph easily if you have the intercept and slope

.5 lb

step-by-step explanation:

12 in / 6 in =2 in

.25 x 2 = .5 lb

infinitely many solutions

step-by-step explanation:

we have been given the equation;

2(2x + 3) = -4 + 2(2x + 5)

we need to determine the value of x.

2(2x + 3), we expand this expression to obtain 4x + 6

similarly 2(2x + 5) will become 4x + 10

now we have;

4x + 6 = -4 + 4x + 10

4x + 6 = 4x + 10 - 4

4x + 6 = 4x + 6

the expression on the left hand side is identical to the one on the right hand side. therefore, we are looking at just a single straight line whose equation is;

y = 4x + 6

consequently, we shall have infinitely many solutions