Find an equation of the line that goes through the points (-9,-20) and (-8,-17). write your answer in the form y = m x + b .

y = 3x + 7

Step-by-step explanation:

First, we will solve for the slope (m).

The formula for slope is: m =

m = --- enter the points into the formula

m = --- simplify

m = 3 --- simplify

Now we will solve for the y-intercept (b).

y = mx + b

y = 3x + b --- substitute the slope into the equation

-20 = 3(-9) + b --- substitute the x and y of either point into the equation

-20 = -27 + b --- simplify

7 = b --- add 27 to both sides

b = 7

Done.

y = 3x + 7

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  

its d. the first coordintaes are 10,32

step-by-step explanation: