Understanding pairs of linear equations in two variables

Which of the following linear equations is written in standard form?

• y=3x - 5
• 3x + 16 = 5y
• 0.5 x + 0.75 y = 21
• 5x + 7y = -12

Write the equation in standard form
 $𝑦−9=-\frac{4}{5}(𝑥+2)$  

•  $4x+5y=37$  

•  $-4x\ +\ 5y\ =30$  

•  $\frac{4}{5}x+y\ =\ \frac{37}{5}$  

•  $5y\ +\ 4x\ =\ 13$  

Write the standard form of the equation for the graph of this line.

• 4x + 4y = -1

• 4x + 4y = 1

• x/4 + y/4 = 1

• x + y = 4

The standard form of the equation $y=-\frac{2}{3}x-5$  is ?

•  $3x+2y=-15$  

•  $2x+3y=-15$  

•  $2x-3y=15$  

•  $3x-2y=15$  

What is the standard form of a linear equation?

• y=mx+b
• Ax+By=C
• y-y₁=m(x-x₁)
• y=b-x