One linear function, t(x), can be modeled by the values in the table below. A second linear function can be modeled by the equation 4x − 5y − 20 = 0. When comparing the x-intercepts of these lines, which function has the largest x-intercept and what is this value? x
t(x) −2 −16
−1 −12
0 −8
1 −4
2 0
A: t(x) has the largest x-intercept: −8.
B: 4x − 5y − 20 = 0 has the largest x-intercept: 5.
C: t(x) has the largest x-intercept: 2.
D: 4x − 5y − 20 = 0 has the largest x-intercept: −4.

ANSWERS

2015-11-08 15:31:36

the x intercept for t(x) is when t(x) = 0 and form thr table that is -8. to find the x intercept for 4x - 5y - 20 = 0 we find x when y = 0:- 4x - 5(0) - 20 = 0 4x = 20 x = 5 so the correcr choice is B

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