19.3k views
5 votes
N

10
-10 - -
-5
-8-
PART A:
What is the y-intercept of the line?
What is the slope of the line?
PART B:
What is the equation of the line in slope-intercept form?
Blank 1:
I
Blank 2:
Blank 3:

N 10 -10 - - -5 -8- PART A: What is the y-intercept of the line? What is the slope-example-1

1 Answer

4 votes

Answer:

y-intercept: (0,6)

slope = -2

equation: y = -2x + 6

Step-by-step explanation:

1) First, identify the y-intercept. The y-intercept is the point at which the line intersects the y-axis. We can see that the line crosses the y-axis at (0,6), so that must be it.

2) Now, find the slope. Pick two points from the line. I chose (0,6) and (3,0). Then, substitute the two points' x and y values into the slope formula
m = (y_2-y_1)/(x_2-x_1)and solve:


m = (0-6)/(3-0)\\m = (-6)/(3)\\m = -2

So, the slope is -2.

3) With the found information, use the slope-intercept formula
y = mx + b to write the line's equation. Substitute values for the
m and
b.


m represents the slope, so substitute -2 in its place.
b represents the y-intercept, so substitute 6 in its place. This gives the following equation:


y = -2x + 6

User Amit Desale
by
4.3k points