ALGEBRA 1 - HELP PLEASE - 08012017 TK

Question

The description below represents Function A and the table represents Function B:

 

 

Function A

 

 

The function is 2 more than 5 times x.

 

Function B

 

x                 y
−1              2
0                 5  
1                 8

 

Which statement is correct about the slope and intercept of the two functions?

 

A.  Their slopes are equal but y-intercepts are not equal.
B.   Their slopes are not equal but y-intercepts are equal.
C.   Both slopes and y-intercepts are equal.
D.   Neither slopes nor y-intercepts are equal.

 

 

Answer 1

Function A;

f(x) = 5x + 2

slope = 5

y-intercept (0,2)

 

Function B:

 

x      y

-----------

-1    2

0     5

1     8

 

m = (5-2)/(0-(-1)) = 3/1 = 3

Verify

m = (8-5)/(1-0) = 3/1 = 3

slope = 3

y-intercept is (0,5)

B:  Slopes are not equal but y-intercepts are equal

Answer 2

A:  f(x) = 5x + 2

B:  g(x) = 3x + 5

 

First, check these statements (Make sure you understand).

Now you can answer this question.