Write an equation of the line in standard form?

The line has the same slope as 6x-y = 5 and the same​ y-intercept as the graph of 4y-9x = 8.
What is the equation in standard form?

2 Answers
May 28, 2018

y-6x=2

Explanation:

Formulas of lines have the form y=ax+b.

  • The slope is a. For example, y=5x means that the y-coordinate increases by 5 for every x.
  • The y-intercept is b. For example, y=5x+2 has a y-intercept at the coordinates (0,2).

First, write the given equations in the form y=ax+b.

6x-y=5

Subtract 6x from both sides.

-y=5-6x

Multiply both sides by -1.

y=6x-5

4y-9x=8

Add 9x to both sides.

4y=9x+8

Divide both sides by 4.

y=2 1/4x+2

In the first equation, a=6 (the slope is 6). In the second equation, b=2 (the y-intercept is 2).

Fill in the slope and the y-intercept into the y=ax+b form, and you've got the line y=6x+2 or y-6x=2 in standard form.

May 28, 2018

The equation of the new line in standard form is y-6x=2.

Explanation:

6x-y=5 is a linear equation in standard form: Ax+Bx=C. We can find the slope by converting it to slope-intercept form: y=mx+b, where m is the slope. To convert the equation to slope-intercept form, solve for y.

6x-y=5

Subtract 6x from both sides.

-y=-6x+5

Divide both sides by -1. This will reverse the signs.

y=6x-5

m=6

4y-9x=8 is also in standard form. We can find the y-intercept by converting to the slope-intercept form, y=mx+b, where b is the y-intercept. Solve for y to convert to the slope-intercept form.

4y-9x=8

Add 9x to both sides.

4y=9x+8

Divide both sides by 4.

y=9/4x+8/4

Simplify 8/4 to 2.

y=9/4x+2

b=2

The new equation where m=6 and y=2 can be written in slope-intercept form and then converted to standard form.

The new equation is:

y=6x+2

To convert to standard form, subtract 6x from both sides.

y-6x=2