Can somebody me. just number one is fine, i just want to know the concept so i can do the rest of the problems.

Q1: m = 3/4

Step-by-step explanation:

Using the formula in the attached diagram,

Consider question 1

For A(1,1) and B(5,4)

x1 = 1, y1 =1, x2= 5, y2=4

hence slope m, = (4-1) / (5-1) = 3/4 (or 0.75 if needed in decimal)

a4 - 3a2 - 1

step-by-step explanation:

step   1   :

equation at the end of step   1   :

  ((a4) -   3a2) -   1

step   2   :

trying to factor by splitting the middle term

2.1     factoring   a4-3a2-1  

the first term is,   a4   its coefficient is   1 .

the middle term is,   -3a2   its coefficient is   -3 .

the last term, "the constant", is   -1  

took the test it's 94