Question

THERE IS 5 QUESTIONS I NEED TO GET DONE IN TOTAL, BUT IT WONT LET ME PUT MANY PICS IN ONE QUESTION SO PLS GO TO MY ACC AND VIEW THE OTHER ONES !!I NEED THIS BY **TODAY**​

Answer 1

y=1/2x-3

Step-by-step explanation: given: (0,-3) (2,-2)

y=mx+b

-3=(m*0)+b

-3=b

-2= (m*2)-3

1=2m

m=1/2

y=mx+b

y=1/2x-3

Answer 2

`y=(1)/(2)x-3`

Explanation:

The equation of a line is y=mx+c, where m is the slope and c is the y-intercept (where the line crosses the y-axis).

Looking at the graph, we can see that the line crosses the y-axis at y=-3, so we know c= -3.

The slope of a line can be found by taking two points on the line,
`(x_(1),y_(1))` and
`(x_(2),y_(2))`, and subbing them into the formula
`m=(y_(2)-y_(1))/(x_(2)-x_(1))`. Let's take the two points (2,-2) and (4:

`m=(y_(2)-y_(1))/(x_(2)-x_(1))=((-1)-(-2))/(4-2)=(1)/(2)`

Therefore, since the equation of a line is y=mx+c, our answer is
`y=(1)/(2)x-3`