Question

Need help please!!! Just the numbers 4-7!

Answer 1

Answer #4- y=3x-7

When an equation is parallel to another, it has the same slope but a different y-intercept. This means we already know that the equation is:

y=3x+b

To solve for b, substitute the given point into the equation and solve

2=3(3)+b

*multiply*

2=9+b

*subtract 9*

-7=b

The final equation for #4 is:

y=3x-7




Answer #5- y= -1/4x+4

With the knowledge of how to solve from the other equation, let’s do #5.

Our current equation, knowing the slope, is:

y= -1/4x+b

Now let’s solve for b

(-8,6)

6= -1/4(-8)+b

*multiply*

6=2+b

*subtract*

4=b




Answer #6- y=3/2x-20

Let’s solve #6 the same way we did with the other two equations.

Current equation:

y=3/2x+b

*substitute point*

-5=3/2(10)+b

*multiply*

-5=15+b

*subtract*

-20=b




Answer #7- y=2/3x-2

Our current equation is:

y=2/3x+b

*substitute point*

2=2/3(6)+b

*multiply*

2=4+b

*subtract*

-2=b



These are your answers! Hope this helps comment below for more questions :)