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3 years ago

Please I need help with the rest of my question.

Mathematics

2 answers:

eduard3 years ago

3 0

Answer:

x-intercept (4,0)

y-intercept (0,10)

Step-by-step explanation:

MAVERICK [17]3 years ago

3 0

The x-intercept of the equation would be (4, 0), and the y-intercept would be (0, 10).

To find the x and y intercepts, you need to substitute in x and y as 0 respectively because the x-intercept occurs when y = 0, and the y-intercept occurs when x = 0.

Substituting in y as 0 to get the x-intercept:

5x + 2(0) = 20

5x = 20

÷ 5

x = 4

Substituting in x = 0 to find the y-intercept:

5(0) + 2y = 20

2y = 20

÷ 2

y = 10

Therefore the final intercepts are (4, 0) and (0, 10)

I hope this helps!

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The graph of y=3x^2-3x-1 is shown. Use the graph to find estimates for the solutions of i)3x^2-3x+2=2 ii) 3x^2-3x-1=x+1

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Answer:

i) (0, 2) and (1, 2), ii) (0.333, 1.333) and (1, 2).

Step-by-step explanation:

i) Let be $y=3\cdot x^{2}-3\cdot x -1$ , if $3\cdot x^{2}-3\cdot x +2 = 2$ , which is equivalent to the following system of equations:

$y = 3\cdot x^{2}-3\cdot x +2$

$y = 2$

Now, this system is now represented by means of a graphing tool and whose outcome is attached below. There are two solutions: (0, 2) and (1, 2)

ii) Let be $y=3\cdot x^{2}-3\cdot x -1$ , if $3\cdot x^{2}-3\cdot x +2 = x+1$ , which is equivalent to the following system of equations:

$y = 3\cdot x^{2}-3\cdot x +2$

$y = x+1$

Now, this system is now represented by means of a graphing tool and whose outcome is attached below. There are two solutions: (0.333, 1.333) and (1, 2)