4. Given the system below, determine the values of r, s, and u that satisfy all three equations
r+ 2x - u = 8
s+u = 4
r-s-u=2

In what form is the following linear equation written y=9x+2

Which of the following is true about the graph of f(x)=7^x. select all that apply. a= it intercepts the x axis b=it intercepts both axis c=it intercepts neither d=it intercepts the y axis

Question: a) does the given set of points represent a linear function? how do you know? b) assume that the point (-2,4) lies on the graph of a line. what y-values could complete this set of ordered pairs that lie on the same line: (- (hint: there are several correct answ