Which equation is in slope-intercept form?

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Prepare for the Praxis Elementary Education Mathematics Test. Engage with flashcards and multiple choice questions, each with hints and explanations. Enhance your chances for exam success!

Multiple Choice

Which equation is in slope-intercept form?

Explanation:
Slope-intercept form is y = mx + b, where the variable y is isolated on the left and x appears with its coefficient m (the slope), plus a constant b as the y-intercept. The equation written as y = 2x + 3 already fits that pattern exactly, with slope 2 and y-intercept 3. The other forms aren’t in that exact layout as written: one needs rearranging to solve for y, another doesn’t even include y, and a vertical-line form would not be expressed with y in terms of x. Since this one is already in the y = mx + b format, it’s the correct choice.

Slope-intercept form is y = mx + b, where the variable y is isolated on the left and x appears with its coefficient m (the slope), plus a constant b as the y-intercept. The equation written as y = 2x + 3 already fits that pattern exactly, with slope 2 and y-intercept 3. The other forms aren’t in that exact layout as written: one needs rearranging to solve for y, another doesn’t even include y, and a vertical-line form would not be expressed with y in terms of x. Since this one is already in the y = mx + b format, it’s the correct choice.

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