Question

Only 23 please. And you can get 50 points

Answer 1

Answer: $\large \boldsymbol {} \displaystyle y=-5x-7 \ \ or \ \ f(x)=-5x-7$

Step-by-step explanation:

• Having built a graph, we can immediately understand that this is a linear function
• y=kx+b

• Having built a graph, we can immediately understand that this is a linear function
• y=kx+b
• In order to determine which rule the function follows, it is only enough for us to know the coordinates of only two points, let them be points (-3  ; 8 ) and (-2 ; 3 )
• Substitute the values of x and y into an unknown function y=kx+b

• $\displaystyle \large \boldsymbol {} \left \{ {{-3k+b=8} \atop {-2k+b=3 }} \right.=> -k=5=>k=-5 \ \ ; \ \ b=3+2k=-7$

• Then we get the function :

• $\large \boldsymbol {} \displaystyle y=-5x-7$

• The graph in attached file

$\large \boldsymbol{}$