Answer all questions! 1.) Vladas believes that an equation with a squared term i

Question

Answer all questions!

1.) Vladas believes that an equation with a squared term is never a function of x. Which equation can be used to show Vladas that his hypothesis is incorrect?

x + y2 = 25

x2 – y = 25

x2 + y2 = 25

x2 – y2 = 25

3.) What is a reasonable estimate for the solution?

(0.7, –1.7)

(–1.7, 0.7)

(1.4, –3.3)

(–3.3, 1.4)

4.) Six times a larger number is equal to the sum of a smaller number and 18. The difference of twice the larger number and the smaller number is 6. Let x represent the smaller number and y represent the larger number. Which equations represent the situation?

5.) Which equation represents the line that passes through points (1, –5) and (3, –17)?

Explanation / Answer

5) Slope of the line is y2-y1/x2-x1

= -17-(-5) / 3-1

=-12/2

=-6

So, y = -6x +k

Put 1,-5

-5 = -6*1 +k

k = 1

Answer is A) y = -6x+1

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