Question the-li
1.3 Linear Equations in Two Variables - Intercepts and slope applications
0:00
The line with the equation 
is graphed in the xy‑plane. What is the x-coordinate of the x‑intercept of the line?
Enter your answer:
The line with the equation is graphed in the xy ‑plane. What is the x -coordinate
Hard-difficulty · SAT Math · Linear Equations in Two Variables — Intercepts and slope applications. Read the question above, select your answer, and check the full explanation below to understand exactly why the correct choice works.
Answer explanation
The correct answer is 1.25. The y-coordinate of the x-intercept is 0, so 0 can be substituted for y, giving 
. This simplifies to 
. Multiplying both sides of by 5 gives 
. Dividing both sides of by 4 gives 
, which is equivalent to 1.25. Note that 1.25 and 5/4 are examples of ways to enter a correct answer.
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