To find the x-intercepts, let y be zero and solve for x. (0) x- 49x %3D 0 = x(x2 - 49) = x(x2 - 72) %3D x(x - 7)(x + 7) %3D X 0, or-

Algebra & Trigonometry with Analytic Geometry
13th Edition
ISBN:9781133382119
Author:Swokowski
Publisher:Swokowski
Chapter3: Functions And Graphs
Section3.3: Lines
Problem 25E
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Please solve step 2 please, thanks!!
Find any intercepts.
Y =x' - 49x
Step 1
To find the y-intercepts, let x be zero and solve for y.
y = (0)3-49(0)
(Let x be zero.)
y 0
0.
y%3D
Hence, the y-intercept is (x, Y) = (0,0
0,0
).
Step 2
To find the x-intercepts, let y be zero and solve for x.
(0) = x - 49x
0 x(x2 - 49)
= x(x? - 72)
x(x- 7)(x + 7)
or-
X = 0,
Transcribed Image Text:Find any intercepts. Y =x' - 49x Step 1 To find the y-intercepts, let x be zero and solve for y. y = (0)3-49(0) (Let x be zero.) y 0 0. y%3D Hence, the y-intercept is (x, Y) = (0,0 0,0 ). Step 2 To find the x-intercepts, let y be zero and solve for x. (0) = x - 49x 0 x(x2 - 49) = x(x? - 72) x(x- 7)(x + 7) or- X = 0,
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