Rob is two times as old as Jake. Three years ago the sum of their ages was 21 years. Find their present ages?
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The y-intercept of B is greater than the y-intercept of A and the rate of change of function A is less than the rate of change of B
<h3>Linear functions </h3>The standard linear equation is expressed as y = mx + b
For the given table;
The y-intercept occur at x = 0
y = 3x + 4
y = 3(0) + 4
y = 4
For the table;
Using the coordinate points (1, 2) and (3,10)
rate of change "m" = 10-2/3-1
m = 8/2
m = 4
Recall that y = mx + b
2 = 4(1) + b
b = -2
Hence the y-intercept of B is greater than the y-intercept of A and the rate of change of function A is less than the rate of change of B.
Learn more on intercept here: brainly.com/question/25722412
