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vladimir1956 [14]
4 years ago
11

What are the x-intercepts of the graph of the function below? y=x^2+2x-15

Mathematics
2 answers:
ikadub [295]4 years ago
6 0

Answer:

x=3  and x=-5

Step-by-step explanation:

To find the x intercepts set y =0 and solve for x

0 = x^2+2x-15

Factor

What two numbers multiply to -15 and add to 2

5*-3 = -15

5+-3 =2

0 = (x+5) (x-3)

Using the zero product property

x+5=0   x-3 =0

x=-5      x=3

Korolek [52]4 years ago
3 0

-5 and 3 will be because for -5 it is (-5,0) and 3 is (3,0)

Step-by-step explanation:

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At a collage bookstore Clara purchased a math textbook and a novel that cost a total of $54 not including tax if the price of th
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Answer:

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Step-by-step explanation:

Given,

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Let,

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Cost of novel = n

According to given statement;

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Step-by-step explanation:

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Which of the following describes the correct process for solving the equation 2x + 6 = 22 and arrives at the correct solution?
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Jeremiah and Tristan work at a dry cleaners ironing shirts. Jeremiah can iron 35 shirts per hour, and Tristan can iron 20 shirts
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<u>Step-by-step explanation</u>:

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  • Tristan can iron = 20 shirts per hour
  • Total work done by both = 490 shirts

Let 'x' be the number of hours Jeremiah ironed.

Let 'y' be the number of hours Tristan ironed.

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