jonna is 4 years older than her brother. which of the following expressions shows the sum of their ages if b represents jonna's brother's age? a. 2b + 4
b. b + 4
c. 2(b + 4)
d. 4b

When the solutions to each of the two equations below are graphed in the xy-coordinate plane, the graphs of the solutions intersect at two places. write the y-cordninates of the points of intersection in the boxes below in order from smallest to largest. y=2x y=x^2-3

Explain why the factor 1.5 is broke. into two numbers in the model.

The input to the function is x and the output is y. write the function such that x can be a vector (use element-by-element operations). a) use the function to calculate y(-1.5) and y(5). b) use the function to make a plot of the function y(x) for -2 ≤ x ≤ 6.