Use the binomial theorem to expand (4-2z)^3

(

t

+

w

)

4

=

t

4

+

4

t

3

w

1

+

6

t

2

w

2

+

4

t

1

w

3

+

w

4

Explanation:

First, you should get to know Pascal's triangle. Here's a small portion of it up to 6 lines. Basically you're just adding the numbers that are beside each other, then writing the sum below them. (For example,  

1

+

2

in the third line equals to  

3

in the fourth line.) If you want a better explanation for that, feel free to do some more research on it.

answer: 15

step-by-step explanation:

step-by-step explanation:

let

we know that

the y-intercept is the y-coordinate of the point when the value of x is equal to zero

so

the y-coordinate of the point a is the y-intercept

the answer part a) is

the value of y-intercept is

part b) find the slope m

we know that

the value of the slope is equal to

substitute the values

therefore

the answer part b) is

the value of the slope is equal to

the general answer is

the slope is

the value of y-intercept is