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Slope review NEED HELP ASAP

Slope Review NEED HELP ASAP class=

Sagot :

Answer:

(0, -6) is the y-intercept, (2, 0) is the x-intercept

Skill(s) needed: Standard Form Evaluation

Step-by-step explanation:

1) We are using standard form in this problem here, where you have [tex]Ax+By=C[/tex]

2) Now, regarding the y-intercept, the y-intercept is when the line intersects with the y-axis, so when x=0.

----> [tex](0,y_1)[/tex]

3) In this scenario, we can plug in 0 for x, and solve for y to get the y-intercept. Let's see it below:

---> [tex]27x-9y=54[/tex]

--->  [tex]27(0)-9y=54[/tex]

---> [tex]0-9y=54[/tex]

---> [tex]-9y=54[/tex]

---> [tex]y=-6[/tex]

Above, y=-6, so the y-intercept is (0, -6) (Note: This coordinate point is verbally defined as: When x equals zero, y equals negative six)

-------------------------------------------------------------------------------------------------------------- The x-intercept works the same way, it is the intersection with the x-axis, and is when y=0.

Plugging it in:

[tex]27x-9(0)=54 \\ 27x=54 \\ x=2[/tex]

x equals two, when y =0, so (2,0) is the x-intercept