I will mark brainiest for whoever gets it correct first!! Solve Systems by Elimination by changing one equation. This does require an explanation. -4x + 9y = 9 x - 3y = -6

7

step-by-step explanation:

the answer would be 7

the graph in the attached figure

step-by-step explanation:

we have

using a graphing tool

the graph in the attached figure

the roots are ( x-intercepts) x=-0.5,x=1,x=3

the y-intercept is the point (0,3)

step-by-step explanation:

a and d

the domain of a function is the set of input values, x , for which a function is defined. the domain is shown in the left oval in the picture below. the function provides an output value, f(x) , for each member of the domain.