Which equation shows the relationship between the x and y values, y=x-4,y=x+5,y=5x, y=x+4

Karianne and lucius are analyzing a linear function on a graph. karianne says that unit rate is equal to rate of change, but that slope is calculated differently. lucius says that unit rate, rate of change, and slope are calculated the same way. who is correct? explain your answer.

Solve this equation using substitution. {4x + y = −2} {4x + 6y = 44}

Asurvey of 2,000 doctors showed that an average of 3 out of 5 doctors use brand x aspirin. how many doctors use brand x aspirin