Question

1. If the value of the dependent variable is 20, find the value of the independent variable in the equation y = 5x + 10??

2. If the value of the independent variable is 30, find the value of the dependent variable in the equation y = 5x + 10??

Answer 1

X = independent variable
Y = dependent variable

1. y = 5x + 10
20 = 5x + 10 plug in
-10 - 10 subtract like terms since 10 is positive
10/5= 5x/5 divide by 5, trying to get x by itself
2 = x 5 divided by 5 cancels out and 10 divided by 5 is 2


y = 5(30) + 10
y = 150 + 10
y = 160