factzofroyalty factzofroyalty

08-03-2018
Mathematics

contestada

Which equation is in slope-intercept form and represents a line with slope 3 through the point (9, –4)?
y=3x+21
y=3x-31
-3x+y=-31
-3x+y=21

Respuesta :

demariaa01 demariaa01

08-03-2018

The slope-intercept form of a line is:

[tex]y = mx + q[/tex]

Where m is the slope and y is the y-intercept:

[tex]y = 3x + q[/tex]

To find q (y-intercept), substitute the coordinates of the point (9, -4) in the equation of the line and solve it as an equation:

-4=3(9)+q
-4=27+q
q=-27-4=-31

The equation of the line is: y=3x-31

Answer Link

Otras preguntas

Iceland is a unique land mass, as it gives scientists the opportunity to study processes that normally occur at a submerged (underground) divergent plate bounda

Use this link to explore the habitat of a giraffe, then answer the question provided. Describe the habitat of the giraffe.

¿Qué comerás mañana? Answer this question by demonstrating your mastery of the future tense!

this 1 seems really complicated

Which answer does not correctly describe the graph of y = 5x + 12? A. The line has a constant rate of change B. The graph contains the point (5, 12) C. The line

describe how Archimedes reacted to the reality of wartime in the Sand Reckoner?

Which description best explains Watson and Crick's DNA model? DNA is a single–stranded molecule that has nitrogenous bases toward its exterior. DNA is a double

What is the value of x^3+y^0x 3 +y 0 x, start superscript, 3, end superscript, plus, y, start superscript, 0, end superscript when x=3x=3x, equals, 3 and y=

The main difference between intrusive and extrusive igneous rocks is ___?A. Intrusive is due to magma cooling deep within Earth's interior and extrusive is due

A soccer player runs 1 5/6 miles during the first half of a match and 2 1/2 miles during the second half. How many miles does he run during the match in total?