132k views
2 votes
Please help me!!!!!!

Please help me!!!!!!-example-1
User Cy
by
9.0k points

2 Answers

2 votes

Answer:

y = 3/4x - 3

Explanation:

Slope = - 3/4, point (0, -3)

y - -3 = - 3/4 (x - 0)

y + 3 = - 3/4x

y = 3/4x - 3

(The slope is go up three from point ( 0,-3 ) and 4 to the left to (-4,0). The y-intercept is -3)

User Summerc
by
8.5k points
5 votes

9514 1404 393

Answer:

y = -3/4x -3

Explanation:

The equation for a line in "intercept form" is ...

x/a +y/b = 1

where 'a' is the x-intercept and 'b' is the y-intercept. Here, the x-intercept is -4, and the y-intercept is -3. This means the equation can be written as ...

x/(-4) +y/(-3) = 1

Solving for y, we get ...

y/(-3) = x/4 +1 . . . . . . . . . . . add x/4

y = -3/4x -3 . . . . . . . . . . . . multiply by -3

_____

Alternate solution

The slope of the line (m) is the ratio of "rise" to "run". Here, the line drops 3 squares for a run of 4 squares to the right, so ...

m = rise/run = -3/4

The line crosses the y-axis at y=-3, so that is the value of the y-intercept.

The slope-intercept form of the equation for a line is ...

y = mx +b . . . . . . for slope m and y-intercept b

This line is ...

y = -3/4x -3

User Mkubaczyk
by
8.5k points

No related questions found

Welcome to QAmmunity.org, where you can ask questions and receive answers from other members of our community.

9.4m questions

12.2m answers

Categories