23- The equation of straight line whose slope 2 and a pass through (1,-1)

 The equation is y = 2x  -3

Step-by-step explanation:

Use the slope intercept formula (y=mx+b)  and input the slope plus the x and y coordinate to solve for b(the y(the intercept) and write the equation.

y = mx + b    m is the slope and be again is the y intercept.

-1 = 2(1) + b

-1 = 2 + b

-2    -2

 b = -3  

Therefore the equation is,   y = 2x  -3

ryan had a head start of 10 meters.

  y= -3x is the required function.

step-by-step explanation:

we have been given a table:

x             y

0             0

1             -3

3             -9

-2             6

we can see that the values of y is -3 times the value of x

hence, the function would be: y= -3x.

put the values of x will give the same y as in the table that means function is satisfying the given table.